動詞 think twice:

1. consider and reconsider carefully

1. I should think twice before I entrusted my money to a person like that.
   要我把錢交給那樣一個人我得先好好考慮一下。
2. As this transaction involve a very large sum, buyer have to think twice before deciding.
   由于這筆交易金額很大，買主在做出決定之前必須再三考慮。
3. You should think twice about employing someone you've never met.
   你要雇用素未謀面的人應三思而行。
4. I advised him to think twice before deciding to quit school.
   我勸告他在決定退學之前再仔細考慮一番。