Central callus
[医] 中央骨痂, 骨髓骨痂
🧩 词语组成解析
callus
['kæləs]
n. 老茧，假骨质;<植>愈合组织;
vi. 结硬皮，生老茧，结痂;
vt. 使生茧（或变硬），使（伤口等）结痂;
🗣️ 情景例句
Yes. Those are excellent gifts. Who else do you need to buy for?
当然，这是都是最佳礼物。你还需要买给谁？
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
Oh dear! What a terrible cough!
噢，宝贝！咳得还真厉害呢！