1、facebook英[feɪ***ʊk]美[ˈfeɪsˌbʊk]，n.一个社交网站; 肖像集。2、[例句]Yet underlying all of this is a simple dyna......

1、beef英[biːf]美[biːf]，n.牛肉; 抱怨; 牢骚;vi.老是抱怨; 大发牢骚。2、[例句]Kenyas beef comes from the zebu cattle.肯尼亚的......