Pit cavity
[医] 点龋
🧩 词语组成解析
pit
[pit]
n. 井;煤矿;麻子;（赛车道旁的）修理加油站;
vt. 使有麻子;使有凹陷;
vi. 凹陷;起凹点;
🗣️ 情景例句
Just three days.
只要三天。
Why don't you change your route?
你们为什么不变更路线呢？
Take this medicine three times a day.
这药每天服3次。