come to think of it

US /kʌm tə θɪŋk əv ɪt/
UK /kʌm tə θɪŋk əv ɪt/
"come to think of it" picture
1.

そういえば, 考えてみれば

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.
そういえば、ジョンを一日中見ていないな。
We should invite Sarah too. Come to think of it, she loves parties.
サラも招待すべきだ。そういえば、彼女はパーティーが大好きだ。