in an emergency

基本解釋

If you're fit enough to open the door in an emergency, you can be the first person out.
如果你足夠適合在緊急情況下打開這道門，你可以當(dāng)?shù)谝粋€跑出去的人。
In an emergency they could and should have done whatever was necessary to prevent the system from collapsing.
在緊急情況下，它們能夠也應(yīng)該采取一切必要措施，以預(yù)防金融體系崩潰。
The inability to restore from a backup in an emergency situation will have serious consequences for your company and probably for you as a DBA who is responsible for these tasks.
如果在緊急情況下無法從備份中還原，對于公司而言，會帶來很嚴(yán)重的后果，對于負(fù)責(zé)這些任務(wù)的 DBA 而言，后果可能也很嚴(yán)重。

The new capsule could also be used if astronauts need to leave the station in an emergency.
This time you're a doctor in an emergency room and six patients come to you.
這次你是一名急診室的醫(yī)生,有天送來了六個病人。
耶魯公開課 - 公正課程節(jié)選
Moreover, you might get hit by an illness and then you could be in desperate trouble that you will die unless you get some kind of emergency care, which might be very expensive.
還有，你可能染上重病,并且深陷絕境,以致你會因此而死去,除非你能獲得異常昂貴的，緊急護(hù)理。
耶魯公開課 - 金融市場課程節(jié)選

So in an emergency, you can restore your information technology (IT) environment in a snap.
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