Tooth bulb
[医] 牙胚, 牙蕾
🧩 词语组成解析
tooth
[tu:θ]
n. 牙;齿;齿状部份;
vt. 给…装齿;
vi. 啮合;
bulb
[bʌlb]
n. 球茎，块茎植物;电灯泡;[解剖学]肿块;
🗣️ 情景例句
The truth is ... yes.
老实说……是很难。
He was content that the thing had happened.
这事终于发生了，对此他是满意的。
With experience, and with improved apparatus,
根据经验和改进了的仪器，