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
there isn't any work for a retired person my age.
没有我这种年纪的退休老人的工作。
Men know where they were born, not where they shall die.
人能知其生于何地，不能知其死于何方。
The man smiled pleasantly.He did not understand English! He spoke German.He was a tourist.
这人友好地笑了笑。他不懂英语！他讲德语。他是个旅游者。