Proteins, which you get from meat and dairy products, are needed in your body for one main purpose - building muscle.

蛋白质，而您从肉类和奶制品的产品，需要在您的机构之一，主要目的-建设肌肉。

youdao

To write any nontrivial site, one have to know dozen of technologies non-related to the site's main purpose at all.

即便是为了编写不重要的站点，一个人也需要了解与站点的主要目的无关的一大堆知识。

youdao

While the main purpose of this experiment was to get accustomed to Android as a platform, I'd be remiss if I didn't mention a few things about the actual Nexus One hardware.

虽然尝试的主要目的是习惯使用Android平台，但如果没有介绍一些关于Nexus One的硬件的的东西，那我就有点不负责了。

youdao

But the system was introduced with one main purpose - to eliminate the possibility of vote-rigging, and give the Kenyan electorate faith in the credibility of the count.

BBC: Kenya 'will announce election winner on Saturday'

The hi-tech system was introduced with one main purpose - to eliminate the possibility of vote-rigging, and give the Kenyan electorate faith in the count - but our correspondent says the failure could end up having the opposite effect.

BBC: Kenya election: Tense wait for Kenyatta and Odinga