熟词生义：“sinkorswim”不是“要么游下去，要么沉下去”

大家好，今天我们那分享一个非常有用且地道的表达——sink or swim, 这个短语的含义不是指“要么游泳要么沉下去”，其正确的含义是：
sink or swim 自己去闯，成败全凭自己；要么成功要么失败
My employer gave me no help when I started my new job - I was just left to sink or swim.
开始新工作时，我的老板没有为我提供任何帮助——全凭我自己打拼。
After I’ve studied and learned all I can, I have to take the test and sink or swim.
在尽努力学习之后，我必须参加考试，要么成功，要么失败。

It’s too late to help John now. It’s sink or swim for him.
现在帮约翰已经太晚了，成功全凭他自己。
The teacher expects you to have all the background material already learned, so you"ll have to sink or swim the moment you start the course.
老师期望你已经具备了学到的所有背景材料，所以你在学习课程的时候成败全凭自己。