愉悦口语:第168期 磨牙英文怎么说

 　　讲解文本：

　　grind one's teeth 磨牙

　　grind 磨，碾

　　Some people grind their teeth while they are asleep.

　　有些人睡觉时磨牙齿。

　　My roommate Jack¹ always grinds his teeth in his sleep, which is a totally disaster.

　　我室友Jack喜欢睡觉磨牙，这对我就是个灾难。

　　疯狂练习吧！

1 jack   

n.插座，千斤顶，男人；v.抬起，提醒，扛举；n.（Jake）杰克

参考例句：

• I am looking for the headphone jack.我正在找寻头戴式耳机插孔。
• He lifted the car with a jack to change the flat tyre.他用千斤顶把车顶起来换下瘪轮胎。