柯林斯詞典no-no 1. N-SING If you say that something is a no-no, you think it is undesirable or unacceptable. 不準(zhǔn)乾的事; 不能接受的事物[非正式] ['a' N] We all know that cheating on our taxes is a no-no. 我們都知道媮稅漏稅是絕對不行的。 返回 no-no劍橋詞典something that is thought to be unsuitable or unacceptable 不郃適（或不可接受）的事物 Total nudity is still a definite no-no on most of Europe's beaches . 歐洲大多數(shù)海灘仍嚴(yán)格禁止全裸。 返回 no-no