dì / di / wǎn / shàng / shuì / jiào / mó / yá / dì / èr / tiān / zǎo / shang / zǒng / jué / de / xià / ba / suān

弟弟晚上睡觉磨牙，第二天早上总觉得下巴酸。

My younger brother grinds his teeth in his sleep and often feels soreness in his jaw the next morning.