Generally, we use " hang on" in the imperative form, which means we give a command.

一般我们在祈使句中使用“hang on”，意思是发出命令。

This is called the imperative form and it's used for giving advice, and also to give orders.

这称为命令式， 用于提供建议， 也用于下达命令。

" To hang in" is to continue, to survive, to not give up; usually in an imperative form.

“坚持”就是继续、生存、不放弃；通常以祈使句形式出现。

You don't need to say: " a" in the CV because this is an imperative form.

您不需要在简历中说：“a” ，因为这是命令式。

And this is one that we definitely most often use in a command form as well, imperative form.

这也是我们最常以命令形式使用的形式，命令形式。