take the words out of someone's mouth
US /teɪk ðə wɜrdz aʊt əv ˈsʌm.wʌnz maʊθ/
UK /teɪk ðə wɜrdz aʊt əv ˈsʌm.wʌnz maʊθ/

1.
把话从某人嘴里说出来, 说出某人正要说的话
to say exactly what someone else was going to say
:
•
You took the words right out of my mouth! I was just about to suggest that.
你把我的话都说出来了!我正要提议那个。
•
When she mentioned going to the beach, she literally took the words out of my mouth.
当她提到去海滩时,她简直是把我的话都说出来了。