to succeed in talking to someone on the phone

I tried to call her but couldn't get through. 我试图给她打电话，但就是打不通。

I got through to the wrong department. 我把电话错打到另外一个部门去了。

to succeed in an exam or competition

She got through her exams without too much trouble. 她没有费太大的劲儿就通过了考试。

to finish something

I can get through a lot more work when I'm on my own. 我一个人时能完成比这多得多的工作。

We've got a lot to get through today. 我们今天有许多事情要做。

to use up something

We're getting through a lot of coffee/toilet paper. 我们喝掉了很多咖啡／用完了很多卫生纸。

She gets through ten bars of chocolate each week. 她每星期要吃掉十条巧克力。

to deal with a difficult or unpleasant experience, or to help someone do this

I don't know how I got through the first couple of months after Andy's death. 安迪去世后的那几个月我都不知道是怎么熬过来的。

We need to conserve our supplies so we can get through the winter. 我们得节约使用日常用品，这样才能度过冬天。