africa是可數名詞嗎

　　West Africa was the pivot of the cocoa trade.

　　西非是可可豆貿易的中心。

　　She caught a fever on her travels in Africa, and died.

　　她在非洲旅行時患熱病而死。

　　She described her experiences in Africa very movingly.

　　她十分動人地描述了她在非洲的經歷。

　　Travelling in Europe was something of an anticlimax after the years he'd spent in Africa.

　　他在非洲生活了多年，到歐洲旅行真是有點太平淡了。

　　Miriam Makeba became known as Mama Africa.

　　米麗婭姆馬凱巴被稱為“非洲之母”。