Osteofibrochondrosarcoma
[醫] 骨纖維軟骨肉瘤
??? 情景例句
Go inside the Information Center.
到服務中心去。
To walk on a beautiful day
在晴朗的日子出去散步
What was the population of the less developed countries in 1950?
1950年不太發達國家的人口是多少？