pity / mercy / sympathy / compassion
这些名词均有“同情、怜悯”之意。
pity 指对弱者、不幸者所表示的怜惜之情。
mercy 侧重指对应受惩罚或地位卑下者的慈悲或怜悯。
sympathy 普 …………

at the mercy of 任凭
mercy killing 安乐死
be at the mercy of 受…摆布
at the mercy of sth. 受…摆布
at the mercy of sb. 受某人摆布
at one's mercy 任其摆布
tempering justice with mercy 用仁慈来缓和正义
have mercy on 怜悯
take mercy on 怜悯
have mercy on sb. 怜悯某人
beg for mercy 乞求宽恕
the prerogative of mercy 仁慈的特权
plead for mercy 恳求宽恕
be at the mercy of something 受某事物支配
show mercy to 怜悯
be left to the mercies of sb. 听任某人摆布
in one's mercy 任其摆布
be left to the tender mercies of sb. 听任某人摆布
be at the mercy of somebody 受某人摆布
throw oneself on the mercy of the court 听任法庭摆布