Tooth germ basement
[医] 牙胚基
🧩 词语组成解析
tooth
[tu:θ]
n. 牙;齿;齿状部份;
vt. 给…装齿;
vi. 啮合;
🗣️ 情景例句
A professional writer?
职业写作人员？
What time does the train for Boston leaves?
去波士顿的火车几点开？
Thirteen.
13岁。