oneself

自己反身用法

One should never be too hard on oneself after a mistake.

犯错之后，不该对自己太过严苛。

亲自、自己强调用法

Some things are simply easier to do oneself.

有些事情自己动手反而比较容易。

独自、靠自己by oneself

Living by oneself teaches you to manage money carefully.

一个人住会让你学著谨慎理财。

自然、不做作be oneself

It feels good to be oneself around close friends.

在亲近的朋友面前做自己，感觉很自在。