in case of an emergency

基本解释

I told them what each was to do in case of an emergency.
我告诉他们在紧急情况下各自要做的事。
Yes, there are hundreds of numbers stored but which one is the contact person in case of an emergency?
是的！手机里存了好几百个电话号码，但哪个是紧急状况下可以联系的人呢？
A TV commercial introduces viewers to Korea’s new address system, which the government here says will make it easier and quicker to order out food, send packages and get help in case of an emergency.
韩国电视广告向观众介绍了韩国的新地址系统。韩国政府在广告中说，新地址系统将使人们更加容易和迅速地订餐、寄包裹和在紧急情况下获得帮助。

Of course I understand the argument for having one handy in case of an emergency.
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Through STEP the State Department is able to communicate important information in case of an emergency.
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