break off 打断;折断 break out (战争、火灾等)突然发生,爆发 break up 分解;分裂 call call for 提倡,号召, 需要 call in 召来,召集 call on 拜访,访问 call up 回想起,打电话 call upon 号召 come come about 发生,产生 come across (偶然)遇见(或发现) come back ...