Your husband shouldn’t use three-letter words to her. 你先生不該用三字經罵她。
Please think three times before doing it. 請三思而後行。
Jason was in three minds. He couldn’t make the decision. 傑森三心二意,無法作決定。
I can’t tell who is smarter. It’s half and half. 我說不上來誰比較聰明,都是半斤八兩。
Debug Answer
Two heads are better than one. 「三個臭皮匠勝過一個諸葛亮」這句話用來表示「人多智廣、眾人力量大」,英文是說兩個腦袋比一個強,所以three heads要改成two heads。
Your husband shouldn’t use four-letter words to her. 英文裡許多不雅字是由四個字母組成,如fuck(性交)、shit(大便),所以老外會用four-letter words隱喻「詛咒、髒話」,與台灣人所謂的「三字經」有異曲同工之妙。
Please think twice before doing it. Please think twice.直譯是「請思考兩次」,意思則是中文常說的「請三思」。附帶提一下:look before you leap直譯是「跳躍之前先看看」,其實也是「三思而後行」的意思。
Jason was in two minds. He couldn’t make the decision. 「三心二意」對應的英文片語是in two minds,介系詞可以用in或of,數字則是two,別錯用成three了!
I can’t tell who is smarter. It’s six of one and half a dozen of the other. 這句慣用語很長,請拆成兩半來看:six of one是「一個之中的六」,half a dozen of the other則是「另一個之中的半打」,半打也是六,所以兩者相當、不相上下,相當於俗語「半斤八兩」