just in case

基本解釋

But supplements do offer an easy, just-in-case form of health insurance.
但是，補品的確很方便地為您的健康增加了一道保險。
Don’t over pack: Easier said than done, but it’s important to leave your just-in-case clothes home.
不要帶太多的東西：說著容易做起來難啊。但是很重要的一點就是要把你認為萬一會用的衣服留在家里。
The backpack is filled and, unsurprisingly for a woman my age, seems to contain rather too many just-in-case medications.
雙肩背包已經(jīng)裝滿了，對我這樣年紀(jì)的女人，這并不奇怪，看起來包里裝了太多預(yù)防萬一的藥品。

So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.
例如這是平均位置，在峰的位置水位高，在谷水位低，我們也可以,討論聲波它也是某種,量的周期變化，在這里我們,討論的是密度,我們有高密度區(qū)和低密度區(qū)。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
It configured the Mac or in this case, the Linux server to put it into my so-called path which just means I know where it is automatically.
在我的Mac機，或者是我們現(xiàn)在的這個Linux服務(wù)器上把它設(shè)置成,自動放到我知道的,路徑下。
哈佛公開課 - 計算機科學(xué)課程節(jié)選
You can stack these things in C. So if you want to do if - and then rather -- let me tweak this just so simplify -- if you want to stack these things and do this in one case or that in the other, can you stack them like this?
你們才可以在C語言中使用這些東西，所以如果你想做,-讓我把這個弄得更簡單點-,如果你想把這些代碼堆集在一起，在一個情況中,或在另一個情況中處理，你能夠像這樣把他們集在一起嗎？
哈佛公開課 - 計算機科學(xué)課程節(jié)選

If your schedule is unpredictable, that may mean carrying a just-in-case snack in your purse or briefcase to stave off hunger.
FORBES: The Perfect Snack