Romance is one thing, marriage is quite another.

爱情是一回事，婚姻却是另一回事。

Being responsible for one's own health is one thing, but being responsible for another person's health is quite a different matter.

对自己的健康负责是一码事，但对别人的健康负责完全是另一码事。

Listening to music at home is one thing, going to hear it being performed live is quite another.

在家里听音乐是一回事，去到现场听又是另一回事。

A number is one thing, and good luck is another.

数字是一回事，好运是另一回事。

Identifying the presence of brown fat is one thing, but activating it to burn more glucose is another.

确定棕色脂肪的存在是一回事，但激活它让它燃烧更多葡萄糖是另一回事。

But job creation is one thing; who gains from it is another.

但创造就业机会是一回事，谁从中受益就是另一回事。

Work is one thing and play is another.

工作是一回事，游玩又是另一回事。

Diagnosing the problem is one thing, solving it is another.

诊断问题是一回事，解决问题是另一回事。

Science is one thing; luck is another.

科学是一回事，运气是另一回事。

Responding is one thing - actively monitoring is another.

回应是一回事，积极监督是另一回事。

Still, recognizing a need for energy storage is one thing, but proving that storage technologies can work is another.

不过，认识到能源储存的必要性是一回事，证明储能技术的可行性则是另一回事。

Producing mandates for negotiators is one thing. Swallowing the results is quite another.

授权给谈判代表是一回事，接受谈判结果又是另一回事。

But output is one thing, and quality is another.

然后产量是一方面，质量是另外一方面。

Suggesting that one thing... is better than another thing... bears no more significance than insinuating that black is better than white.

暗示一件东西比另一件东西更好比旁敲侧击地说黑比白好并没有更大的意义。

Owning your time and owning your money is one thing. Owning your emotions is quite another.

掌握自己的时间和钱是一件事，但是能掌握自己的情绪却是另一件完全不同的事。

Arguing that airports are bound to become more central to our lives is one thing; arguing that they ought to be is another.

认为机场必将在我们的生活中变得更加重要是一回事，认为机场应该在我们的生活中更重要是另一回事。

Counting customers with motion sensors as they enter a supermarket is one thing, but sorting them into social or racial groups using video analysis is another.

在顾客走进超市时用动态传感器对顾客计数是一回事，而用视频分析把顾客们分类为社会或民族群体却是另外一回事。

To think up a new concept is one thing; to put the idea to work is another.

想出一种概念是一回事，把这种概念加以实施是另一回事。

It is one thing to talk about death in the abstract. It is entirely another to cope with the death of someone you love very, very much.

在理论上谈论死亡是一回事，而面对你非常、非常爱的人的死亡则完全是另外一回事。

Finding tetrachromats through genetic screening is one thing. Proving they can see tens of millions of additional colors is another.

通过基因筛选找到四色视者是一回事，证明她们可以看到千万种更多的色彩则是另一回事。

Thinking within an accepted tradition is one thing; to challenge the tradition itself is another.

根据传统进行思考是一种方法，对传统进行反驳是另一种。

It is one thing to talk about death in the abstract.It is entirely another to cope with the death of someone you love very, very much.

在理论上谈论死亡是一回事，而面对你非常、非常爱的人的死亡则完全是另外一回事。

Here's why I'm worried: Winning the right to marry is one thing; being forced to marry is quite another.

而我所担心的是：赢得结婚的权利是一回事，但被逼迫结婚就是另外一回事了。

Getting children to school is one thing, keeping them there is quite another.

让孩子们入学是一件事，让他们完成学业就又是另一件事了。

Sequencing DNA is one thing; figuring out how to use that knowledge to halt the ants' spread is another.

测算dna是一个问题(事情更好些？)；解决怎样利用现有知识去阻止蚂蚁的扩散是另一个问题。

Anyone who's ever run a website knows that building the site is one thing, getting people to use it is quite another.

任何运营过网站的人都知道，网站的建设是一回事，让人们来用它又是另一回事了。