sink or swim

基本解释

Two weeks ago I came to the end of eight straight weeks of staring at the ceilings of hospital rooms, and now I’m alone in a new city- sink or swim!
兩周前我終於結束了整整8周在毉院小隔間的生活，而現在我已經在一個新地方獨立生活---或沉淪或遨遊！
With technology undermining the old monopolies that postal services used to enjoy, the obvious answer is to privatise them and let them sink or swim.
隨著科技正逐漸動搖郵電業曾經享受的壟斷地位，明顯的答案就是將郵電私有化，然後任其沉浮。
If you’ve suddenly been dumped, you’ll have had a picture in your mind of how your life was going to be and, when it all comes crashing down, you either sink or swim.
如果你突然被人拋棄，你一定會在腦海裡想象未來的生活將會變成什麽樣子，然而，儅這一切如洪水般從天而降，您所能做的，就是要麽沉入水底葬身魚腹，要麽奮力拼搏去擊水中流。

They're in this classroom -- they're sort of just thrown in to sink or swim.
WHITEHOUSE: Online Town Hall
Perhaps, more pragmatically, he calculated that Wahhabism and the Saud family would sink or swim together.
ECONOMIST: Sheikh Bin Baz
There is little public support for scrapping more social programmes—however dysfunctional—and leaving the poor to sink or swim.
ECONOMIST: Lexington

If you are left to sink or swim, you are given no help so that you succeed or fail completely by your own efforts.