do or die

基本解釋

Now we are going back to that critical moment: is it do or die (well, the sun will come up tomorrow morning anyway)?
現(xiàn)在我們要回到最關(guān)鍵的問題：是做還是死（當(dāng)然，無論如何在第2天早晨太陽還是會照樣升起的）?
Uberman, being more severe and more extreme, becomes habit a lot quicker once you get the hang of it; and you get the hang of it faster, because it's more "do or die" for your body.
Uberman計劃更嚴(yán)格更極端，但你能更快掌握它的竅門，因為它對你的身體更極端：要么堅持下去，要么別想學(xué)會。
When you approach the idea of networking as a 'do or die' situation, you're going to get nothing (especially valuable contacts) out of it.
當(dāng)你處于?“決一死戰(zhàn)”的社交情形時，你從中什么也得不到（特別是有價值的信息）。

They say many people die or are injured by the gas because they do not use these devices correctly.
Now, having said that, of course, that doesn't in any way mean that it's a good thing that we die when we do at 50 or 80 or 100.
說明這個觀點后，當(dāng)然那并不意味著,我們在50，80，100歲時死掉,是件幸事。
耶魯公開課 - 死亡課程節(jié)選
You might ask though,is there some other behavior, something else that should tip us off,could tip us off, as to whether or not we really do or don't believe that we're going to die?
你可能會問，有沒有其他行為，能夠讓我們突然醒悟，知道我們真正是否相信自己會死呢？
耶魯公開課 - 死亡課程節(jié)選

Mr. NOWICKI: Well, I think if - New Hampshire is really do or die for McCain.
NPR: McCain Keeps Home Fires Burning

said when you are in a situation in which you must take a big risk in order to avoid failure