Proteins are used for protein synthesis and a slew of other metabolic purposes.

蛋白质则被用于蛋白质织合成和大量新陈代谢活动。

Economists point out that money serves three main purposes.

学家指出，货币有三个主要功能。

I'm recording this for clerical or marking purposes.

我把个记录下来是为了文书以及后续打分。

There are also various buildings and rooms that serve specific purposes.

还有用于特地目的的各种建筑物和房间。

Now, if something does double duty is serves two purposes.

现在，如果某物有双重职责，就是有两个目的。

It's also favored by many organizations for professional registration purposes.

学术类也受到许多织的青睐，用于专业注册目的。

Rugs are floor coverings that serve many purposes in a home.

地毯是在家里有多种用途的地板覆盖物。

But these tissues come in different varieties that serve different purposes.

但是些织有不同的种类，有不同的用途。

There were no moving parts, springs or complex materials, yet every element had multiple purposes.

笔上没有活动部件、弹簧或复杂的材料，但每个部件都有多种用途。

So he served many purposes, and it shows that you can trust management.

所以他在很多方面都很起作用，你可以信任管理层。

Medical emergency flights and ones for searching rescue purposes are allowed to continue.

紧急医疗航班以及以搜索救援为目的的航班被允许继续飞行。

It insists its nuclear program is for civilian power and other peaceful purposes.

个国家坚称其核项目是出于民用及其他和平措施考虑。

He says the space created can be used for cultural and entertainment purposes.

他说腾空的位置可以用来做文娱场所。

An undue emphasis on the importance of exams may serve to undermine this purpose.

然而，过于重视考试的重要性将有损于知识的传播。

Yet it serves no obvious adaptive purpose.

但音乐无法满足适应性需要。

He explains the purpose of the vault.

他解释了建造个地窖的目的。

But runny noses serve a useful purpose.

但是流鼻涕也是有益处的。

This immediately gives your day purpose and direction.

会立即给你一天带来目标和方向。

But the two expressions have different purposes and meanings. In fact, they are opposites.

实际上，二者意思相反。

The satellites will serve various purposes, including monitoring greenhouse gases and detecting forest fires.

20枚卫星各有不同用途，包括监测温室气体与森林烟火。