an emergency door的意思|示意

Step 5: Look for an emergency exit or emergency door release switch.

寻找紧急出口或紧急开门按钮。

If you're fit enough to open the door in an emergency, you can be the first person out.

如果你足够适合在紧急情况下打开这道门，你可以当第一个跑出去的人。

This door should only be used in an emergency.

这道门只能在紧急情况下使用。