Osteonecrosis
骨坏死
🗣️ 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大学的新生注册主任。
The fire is the test of gold;adversity of strong man.
烈火试真金，困苦炼壮士。
Where's the other one?
另一只在哪儿？