second thoughts

柯林斯词典

1. N-SING If you do something without a second thought, you do it without thinking about it carefully, usually because you do not have enough time or you do not care very much. 再次考虑
This murderous lunatic could kill them both without a second thought. 这个杀人狂会毫不犹豫地把他们两人都杀掉。
2. N-PLURAL If you have second thoughts about a decision that you have made, you begin to doubt whether it was the best thing to do. 转念
I had never had second thoughts about my decision to leave the company. 我从未对离开那家公司的决定有过别的想法。
3. PHRASE You can say on second thoughts or on second thought when you suddenly change your mind about something that you are saying or something that you have decided to do. 转念一想
"Wait there!" Kathryn rose. "No, on second thought, follow me."
“等等！”凯瑟琳站了起来。“不，转念一想，跟我来吧。”