think twice 再三考慮
♬例The exorbitant price of the new fax machine made me think twice about buying it.
新傳真機的價格過高，我還在慎重考慮要不要買。
類 think over
Opportunity seldom rings twice. 良機稍縱即逝。
♬例
A: Should I take the job?
我該不該接受這個工作？
B: I would. Opportunity seldom rings twice.
要是我，我會。好機會不會降臨第二次。
機會是不等人的，“Opportunity seldom rings twice.” 表達的就是這個意涵。另，也有很多人以 “knock（敲門）取代 “ring”（鈴響）。
once bitten, twice shy
一朝被蛇咬，十年怕草繩
例
A: Let’s go to that all-you-can-eat hot pot place tonight! What do you say?
今晚我們去那家吃到飽火鍋店吧！你覺得怎麼樣？
B: What? Hell no! Don’t you remember what happened last time?
什麼？我才不要！你忘記上次發生了什麼事嗎？
A: Oh, yeah. I guess you did spend a couple hours in the bathroom after we got home.
噢，對齁。我們回到家後你一直跑廁所。
B: Right. Once bitten, twice shy. Just bring me back a sandwich or a rice ball or something.
對啊。一朝被蛇咬，十年怕草繩。幫我帶個三明治或飯糰之類的回來就好了。
Measure twice, cut once.
三思而後行
例
A: Uh oh. I put too much kirsch in the fondue.
噢喔，我放太多櫻桃酒到起司鍋裡了。
B: You know what they say: “Measure twice, cut once.”
俗話說：「測量兩次，切割一次」啊，小心一點。
A: Yeah, I’ll use a measuring spoon next time.
嗯，我下次會用量匙。
Cheap at twice the price!
非常便宜！
例
A: This pen is great!
這支筆超棒的！
B: Yeah, it was only 10 dollars. Cheap at twice the price!
對啊，才 10 元。就算價格翻倍也都還很便宜！
