The President sat glumly rubbing his upper molar, saying nothing.
总统愁眉苦脸地坐在那里,磨着他的上牙,一句话也没有说。
persistent molar
永久臼齿
🌱 联想助记
【记】谐音“没了”:老年人的臼齿没了
📖 牛津释义
molar
n
any of the teeth at the back of the jaw used for grinding and chewing food 磨牙; 臼齿
upper/lower/front/back molars 上[下/前/後]磨牙. =>illus at tooth 见tooth插图. molar, adj of such teeth 磨牙的; 臼齿的
molar cavities 磨牙龋洞.