“You don't know you have to sing Happy Birthday twice to get the germs off?”
你難道不知道,要唱兩遍生日歌才能把細菌趕走嗎?
把唱生日歌和除菌扯在一起,一本正經地胡說八道。
You don't know you have to ...?
用誇張的常識反問逗人時用;對不熟的人會顯得沒禮貌。
Didn't you know you have to ...? / You mean you don't know ...?
口語
don't know you 連讀,twice 重讀,句尾上揚。
You don't know you have to knock twice to be let in? 你難道不知道要敲兩下才有人開門嗎?
