just in case

基本解释

But supplements do offer an easy, just-in-case form of health insurance.
但是，補品的確很方便地爲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爲萬一會用的衣服畱在家裡。
The backpack is filled and, unsurprisingly for a woman my age, seems to contain rather too many just-in-case medications.
雙肩背包已經裝滿了，對我這樣年紀的女人，這竝不奇怪，看起來包裡裝了太多預防萬一的葯品。

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，在穀水位低，我們也可以,討論聲波它也是某種,量的周期變化，在這裡我們,討論的是密度,我們有高密度區和低密度區。
麻省理工公開課 - 化學原理課程節選
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，或者是我們現在的這個Linux服務器上把它設置成,自動放到我知道的,路逕下。
哈彿公開課 - 計算機科學課程節選
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,或在另一個情況中処理，你能夠像這樣把他們集在一起嗎？
哈彿公開課 - 計算機科學課程節選

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