come to think of it
US /kʌm tə θɪŋk əv ɪt/
UK /kʌm tə θɪŋk əv ɪt/

1.
说起来, 仔细想想
used to introduce a new thought or a realization that occurs to one at the moment of speaking
:
•
Come to think of it, I haven't seen John all day.
说起来,我今天一整天都没见到约翰。
•
We should invite Sarah too. Come to think of it, she loves parties.
我们也应该邀请莎拉。说起来,她喜欢派对。