If anything goes wrong, please keep calm.
如果出了什么事，请保持冷静。
If you are scalded, please keep calm at first.
如果你被烫伤了，首先请保持镇静。
When you heard the bad news, please keep calm.
当你听到不幸的消息时，请保持镇静。
L&G:This is your chief purser speaking, further to the captain's announcement . please keep calm and carry out the following preparation.
女士们、先生们：我是乘务长，现在代表机长广播，请保持安静并做下面准备。
All crew members please keep calm. There is no reason to Panic. The lifeboat men know exactly what to do.
所有船员，保持镇静，没有理由恐慌，救生艇员完全知道应该怎么样做。
请镇静一点。
请镇静一点。
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