14.________ n.反面;对立面
adj.相反的;相违的
15.________ n.信封
contrary
envelope
16.____________ adj.难以置信的→___________ adj.可信
任的→________ vt.相信;信任
unbelievable
believable
17.________ n.数量
believe
amount
18.________ adj.粗鲁的;无礼的→___________ n.粗鲁
19.________ n.礼貌;举止;方式 20.________ adj.真的;真诚的
manner
rudeness
21.________ adv.真正地;确实;实在
22.________ vi.& n.鞠躬;弯腰
indeed
bow
rude
genuine