(1)宽容，仁慈，慈悲，怜悯(forgiveness，kindness for sth wrong sb has done)[U]：show/give～to one's enemies/prisoners/captives/criminals对敌人/囚犯/俘虏/罪犯宽容;The merciless man showed the repentant sinner no～whatsoever.那残忍的人对有罪要悔改的人毫不留情。They had no/little/some～on　innocent men and women.他们对无辜的人毫无/几乎没有/有些慈悲心。ask/beg/plead for～请求/乞求/恳求宽大处理;He begged the jury's～.他乞求陪审团宽容。throw oneself on the～of the court/judge/Queen/King 指望法庭/法官/女王/国王宽恕;an adversary wholly without～毫不留情的对手;～killing/flight 安乐死/急救飞行;〖同〗kindness，sympathy，charity;〖反〗cruelty，revenge;

(2)幸运(piece of good luck or sth to be grateful for)[C，通常sing][infml]：What a～(that) he escaped the fire/Mains had given up drinking! 他从火灾中逃生/梅因斯戒掉了酒，真是幸运!It was a～(that)she wasn't killed in the accident/no one was hurt/it didn't rain. 她在事故中幸存下来/无一受伤/没有下雨，真是侥幸。That's a～.那真是运气。Her death is a～.她的死是一种解脱。

at the mercy of 任凭……摆布(支配)：The farmer was at the～of the weather. 农民靠天吃饭。The boat wat at the～of the wild waves. 小船逐浪漂流。The poor child was at the～of the gunman.可怜的孩子掌握在枪手手上。

→′merciful adj 宽容(恕)的;不幸中算幸运的;′mercifully adv 宽恕(容)地;′merciless adj 残忍(无情)的;′mercilessly adv 冷酷无情地