a part

基本解释

They displayed only a part of their products because space was limited.
因场地有限，他们只展出了部分产品。
《新英汉大辞典》
Your character is already a part of the world around them; they have friends, enemies, and a past.
你们的角色已经是它们周围的这个世界的一部分了；它们有朋友，敌人和过去。
In that future, your computer is not only incorporated into every aspect of your life but is a part of you.
在未来，你的电脑不仅同你生活的各个方面都联系起来，而且会成为你自身的一部分。

Studies have shown that activation of the trigeminal nerve may come from a part of the brain called the hypothalamus.
That person didn't take ownership of his or her education.That person isn't deciding to be a part of the 3.091 community.
他没有掌握他自己学业的自主权,他没有决定要成为,我们这门课程的一部分。
麻省理工公开课 - 固态化学导论课程节选
I just want to do roles or create roles for me that I want to be a part of
我就是想扮演或者创造那些能让我融入其中的角色。
唱片即将上市 - SpeakingMax英语口语达人

Here are few things to consider before you make gold a part of your investment portfolio.
FORBES: Gold Investing: An Owner's Manual

When people or things are apart, they are some distance from each other.
If two people or things move apart or are pulled apart, they move away from each other.
If two people are apart, they are no longer living together or spending time together, either permanently or just for a short time.
If you take something apart, you separate it into the pieces that it is made of. If it comes or falls apart, its parts separate from each other.
If something such as an organization or relationship falls apart, or if something tears it apart, it can no longer continue because it has serious difficulties.
If something sets someone or something apart, it makes them different from other people or things.
If people or groups are a long way apart on a particular topic or issue, they have completely different views and disagree about it.
If you can't tell two people or things apart, they look exactly the same to you.
Apart from means the same as aside from.
You use apart when you are making an exception to a general statement.