实用英语口语:“拗口”英文怎么说？

英语自学网

　　DONNY: 吴琼，What's up?
        　　WQ: 我表姐要生宝宝了，发动全家给孩子起名儿呢，这不，我翻翻字典，找点灵感。
        　　DONNY: Interesting! 我也来出主意!
        　　WQ: 孩子姓唐，你说叫什么好?
        　　DONNY: 唐?嗯……唐 - 老 - 鸭。
        　　WQ: 啊?!
        　　DONNY: Haha! I'm sorry, Wu Qiong. I know this is a terrible name, but when
you mentioned the word“唐”， the name rolled right off my tongue.
        　　WQ: Rolled right off your tongue?
从舌头上滚下来?我明白了，就是顺口，脱口而出。你一听到“唐”字，顺口就说出了唐老鸭。 那……如果不顺口，也就是拗口，该怎么说呢?
        　　DONNY: You can say it's a tongue twister.
        　　WQ: 哦，tongue twister，就是说起来拗口的东西! This name is a tongue twister 这个名字真难念。
        　　DONNY: 没错! Wu Qiong, you know the luxury car brand "Mercedes-Benz", do
you?
        　　WQ: Mercedes-Benz? 就是奔驰嘛!
        　　DONNY: Right. The Chinese translation“奔驰”rolls right off the tongue.
However, if we call the brand 梅赛德斯·本兹， to me , that's a tongue twister! It's
like I'm tripping over my own tongue when I try to say it.
        　　WQ: Trip over your own tongue? 我知道trip是绊倒的意思，所以trip over one's own tongue
就是打磕巴，吃螺丝吧?
        　　DONNY: Absolutely!
        　　WQ: DONNY, We need to find a good name for this baby. We don't want people
to trip over their own tongues when they say the baby's name!
        　　DONNY: Of course, but first let's see what you've learned today!
        　　WQ: 第一，顺口叫“to roll right off the tongue”;
        　　第二，拗口的东西则是“a tongue twister”;
        　　第三，打磕巴，吃螺丝，叫“to trip over one's own tongue”。