Nuts and seeds are good sources of vitamin E.

坚果和种子是维生素E的良好来源。

There are alternative sources of nutrition to animal meat.

有能替代动物肉类的其他营养来源。

They believed ancient Greece and Rome were vital sources of learning.

他们认为古希腊和古罗马是至关重要的知识来源。

The earth and the sun are two great sources of life.

地球与太阳是生命的两大源泉。

First of all, avoid all possible sources of allergy.

首先，避免所有可能的过敏源。

When our sources of fresh water get polluted, we can no longer use this water.

当我们的淡水来源被污染，我们就不能再使用这些水。

Strangers and travelers were welcome sources of diversion, and brought news of the outside world.

陌生人和旅行者是受欢迎的消遣来源，他们带来了外面世界的新闻。

We tend to think that friends and family members are our biggest sources of connection, laughter, and warmth.

我们往往认为朋友和家人是我们人际关系、快乐和温暖的最大源泉。

He's obviously been asking her about the sources of some of the images and characters and themes in Wise Blood.

他显然是在问她《慧血记》中一些形象、角色和主题的来源。

In Greece, rhododendrons and oleander bloom only in springtime, when they are the predominant sources of nectar.

在希腊，杜鹃花和夹竹桃只在春天开花，那时它们是花蜜的主要来源。

The study will identify and collect data on sources of industrial, agricultural and residential pollution for two months.

这项研究将在两个月内确定并收集工业、农业和住宅污染来源的数据。

Because they are porous, sedimentary rocks, such as sandstones and conglomerates, are important potential sources of groundwater.

由于像如砂岩和砾岩这样的沉积岩是多孔的，它们是地下水的重要潜在来源。

The latest research will help astronomers distinguish between the two sources of methane in their search for extraterrestrial life.

这项最新发现将帮助天文学家在寻找外星生命过程中辨别两种来源不同的甲烷。

These springs are the sources of streams and rivers, which cut through the rocks and carry away debris from the mountains to the lowlands.

这些泉水是溪流和河流的源头，这些溪流和河流穿过岩石，把山上的碎石带到低地。

In many cases, the glossy brochures, article reprints and prescriptions they deliver are primary sources of drug education for healthcare givers.

在许多情况下，他们提供的精美小册子、文章重印本和处方是医疗保健人员药物教育的主要知识来源。

Sugars are also carbohydrates, sources of sugars are refined sugar—sucrose, which is a food sweetener and preservative and fruit sugars—fructose.

糖类也是碳水化合物，糖类的来源是精制糖——蔗糖，它是一种食品甜味剂、防腐剂和果糖。

Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.

水井是更可靠的淡水来源，加州希望这些深井能解决他们严重的水资源短缺问题。

He knew that the sources of the red-stained grains were generally closer to the North Pole than were the places yielding a high proportion of "clean" grains.

他知道，这些红色颗粒的来源通常更靠近北极，而不是那些产生大量“干净”颗粒的地方。

While we have ample supplies of water because of the four different sources of water that we now have, we do want people to realize that this don't come easy.

虽然我们现在的水供给很充裕，因为我们现在有四种途径来获得水源，我们想让人们明白它的来之不易。

A more radical solution is to find new sources of commercial revenue within the terminal, and this has been explored by many airports over the last decade or so.

一个更激进的解决方案是在航站楼内寻找新的商业收入来源，而在过去十年左右的时间里，许多机场都在这一方面进行了探索。

Instead, fish reared in high-density situations may learn that conspecifics are to be viewed as competitors, rather than as potential sources of adaptive information.

"相反，在高密度情况下饲养的鱼类可能会了解到，同种物种应被视为竞争者，而不是适应性信息的潜在来源。

Prices fluctuate, in response to harvests, natural disasters and political instability; and when they rise, it takes some time before new sources of supply become available.

价格会随着收成、自然灾害和政治不稳定而波动；当价格上涨时，需要一段时间才能找到新的供应来源。

In some cases, schools should help children find new, more grown-up ways of doing the same things that are constant sources of joy: making art, making friends, making decisions.

在某些情况下，学校应该帮助孩子们找到更成熟的新方式来做同样的事情，如创造艺术、交朋友、做决定，这些事情是永恒的快乐源泉。

Economist Jason Murphy says that companies use customer satisfaction ratings because a shining display of star feedback has become the nuclear power sources of the modern economy.

经济学家杰森·墨菲认为，公司使用客户满意度评级是因为一个闪亮的星评反馈已经成为现代经济的核心竞争力来源。

The 83% of American employees who are stressed about their jobs—up from 73% just a year before—say that poor compensation and an unreasonable workload are their number-one sources of stress.

83%的美国员工因工作而倍感压力，而一年前这一比例为73%。他们表示，微薄的薪酬和不合理的工作量是他们最大的压力来源。

Renewable sources of energy must be used.

可再生的能源必须利用。

Glasgow is going to explore new sources of renewable energy.

格拉斯哥将探索新的可再生能源。

Colin and Mary found it one of their most thrilling sources of entertainment.

科林和玛丽觉得这是他们最激动人心的娱乐方式之一。

This means that artists were forced to work in cramped spaces and without sources of natural light.

这意味着艺术家被迫在狭小的空间里工作，并且没有自然光。

Why don't we talk about the potential new sources of biofuel—so rather than corn and sugar cane—what other plants could be used?

我们为何不讨论生物燃料的潜在新来源？除了玉米和甘蔗，还有什么其他植物可以使用？