n.背,背部,背面,反面,后面,后部,(椅子等的)靠背
vt.使后退,支持,加背书于,下赌注于
vi.后退,倒退
adj.背部的,后面的,以前的,拖欠的
adv.以前,向后地
The rescuers were beaten back by strong winds and currents.
救援人员因风浪太大而被迫中断工作。
If you love life, life will love you back.
热爱生活,生活也会厚爱你。(Arthur Rubinstein)
We'll go to a meeting in Birmingham and come straight back.
我们将去伯明翰参加会议,然后马上回来。