翻译you must have been waiting for ages,for you look so worried.

问题描述:

翻译you must have been waiting for ages,for you look so worried.
不要直接用百度翻译,那都是字面翻译,不通!

你看起来如此焦急,一定是等了很久.或、
你一定等了很久,因为你看起来很着急.
for在此处做介词表“因为”,主句和从句是因果关系.