How does an early-warning system help us maintain the ecological balance?

It would be difficult for developed countries to maintain the of population.

Nasa is worried about two things: recovery time once astronauts return home, and, more importantly, how to maintain strength and fitness for the two and a half years or more that it would take to make a round-trip to mars.

Residential buildings must maintain an atmosphere that supports the academic mission of the university.

She had big problems maintaining her performance.

The fifty-two week money challenge is simple and if it is maintained, it will result in 1378 dollars in your savings account each year.

They inspect all campus buildings and test and maintain all sprinkler(喷水灭火装置) systems fire alarms.

To check and maintain fire prevention equipment.

Their life was much more comfortable than that of todayIt was helpful to maintaining a nation's tradition.

Since industrialization, maintaining such a slow cultural metabolism has been much harder, with the long midday meal shrinking to whatever could be stuffed into a lunch bucket or bought at a food stand.

Professional fashion models are particularly vulnerable to eating disorders resulting from occupational demands to maintain extreme thinness.

Responsibilities generally include supervising study spaces to ensure that a quiet atmosphere is maintained.

They help to maintain social stability.

There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy.

But chariots maintained their place in parades and triumphs right up until the end of the Roman Empire 1,500 years later.

Its purpose is to build and maintain bone and muscle mass, both of which shrink with age.

In the absence of societal pressures to maintain pair-bonds, O'Sullivan suggests that romantic love has increasingly come to be seen as the factor that should determine who we stay with and for how long

Without social pressures to keep pair-bonds, romantic love plays a key role in maintaining long-term relationships.

plays a key role in maintaining long-term relationships

The problem is that such an impulse is hard to sustain Across the country, many similar families were unable to maintain the initial boost in morale(士气).

maintain closer relationships with their teachers

The author suggests at the end of the passage that couples should discuss money matters to maintain a healthy relationship.

discuss money matters to maintain a healthy relationship

The Phoenix, in Mid-Levels, offers the widest interpretation of British cuisine, while still trying to maintain its soul.

maintain British traditional tastes

Even the traditional chefs are aware of the need to adapt to local tastes and customs, while maintaining the Britishness of their cuisine.

Surveys show that the number of worried Americans has been steadily growing over the years as the computer becomes increasingly efficient, easier to operate, and less costly to purchase and maintain.

They also took terms in watering, weeding and maintaining the plot.

It can be maintained among people of different age groups.

Durable friendships can be very difficult to maintain

Chris is in charge of purchasing and maintaining equipment in his Division at Taxlong Company.

The Olympic got wrecked before the titanic did, but it was the only one to survive and maintain a successful career of 24 years.

The researchers speculate that craft activities promote the development of nerve pathways in the brain that help to maintain cognitive health.

There were no longer enough fish in the sea for the stock to maintain itself, let alone an industry.

It is also the reason why development agencies are not united in their view of environmental issues; while some, like the WRI, maintain that environmental progress needs to go hand-inhand with economic development, others argue that the priority is to build a thriving economy, and then use the wealth created to tackle environmental degradation.

Seven in 10 workers say they struggle to maintain work-life balance.

It will be easier to operate and maintain.

As some countries expand operations in Antarctica, the United States maintains three year-round stations on the continent with more than 1,000 people during the southern hemisphere's summer, including those at the Amundsen-Scott station, built in 1956 at an elevation of 9,301 feet on a plateau at the South Pole.

Amid all the changes, Antarctica maintains its allure.

The third element of love in Sternberg’s theory is what he calls decision commitment, the decision that one is in a love relationship, the willingness to label it as such and the commitment to maintain that relationship at least for some period of time.

Sternberg would argue it’s not love if you don’t call it love and if you don’t have some desire to maintain the relationship.

Those who use self-defeating humor,making fun of themselves, of the enjoyment of others, tend to maintain that hostility toward themselves even when alone.

Maintain the automated system.

Chris is in charge of purchasing and maintaining equipment in his Division at Taxlong Company.

Health experts advise that the average woman should consume about 2,000 calories a day and a man about 2,500 calories to maintain a healthy weight.

What could British people expect if they maintain a normal body weight according to the WCRF

\We want to improve the quality of animal health and make it easier for farmers to maintain large landscapes where animals roam free,\ says Sukkarieh.

As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is the most stable state that the plant can maintain, Farrant says.

However, it is farmers that are pushing for the advancements due to ever-increasing labor vacancies, making it difficult to maintain large-scale operations.

It is also the reason why development agencies are not united in their view of environmental issues; while some, like the Wri, maintain that environmental progress needs to go hand-in-hand with economic development, others argue that the priority is to bu

Seven in ten workers say they struggle to maintain work-life balance.

Sternberg would argue it's not love if you don't call it love and if you don't have some desire to maintain the relationship.

The third element of love in Sternberg's theory is what he calls decision commitment, the decision that one is in a love relationship, the willingness to label it as such and the commitment to maintain that relationship at least for some period of time.

But, the force of geographic conditions peculiar to America, the interplay of the varied national groups upon one another, and the sheer difficulty of maintaining old-world ways in a raw, new continent caused significant changes.

Even so, these are wealthy families who party with the international 1%, and media intrusiveness makes it increasingly difficult to maintain the right image.

Certainly, it's incredibly hard to maintain patience at all times with your children.

In fact, the ability to emotionally regulate or maintain emotional control when confronted by stress is one of the most important of all life's skills.

Sometimes parents get exhausted and frustrated and are unable to maintain a tolerant and composed style with their kids.

The court cannot maintain its legitimacy as guardian of the rule of law when justices behave like politicians.

The Europe Union is now considering legislation to compel corporate boards to maintain a certain proportion of women—up to 60 per cent.

Young people who are still getting started in life were more likely than older adults to prioritize personal fulfillment in their work, to believe they will advance their careers most by regularly changing jobs, to favor communities with more public servi