mercy
/ˈmɜ:sɪ; `məsɪ/ n
1 [U] kindness, forgiveness, restraint, etc shown to sb one has the right or power to punish 仁慈; 宽恕; 宽容
They showed mercy to their enemies. 他们对敌人很仁慈.
We were given no/little mercy. 我们没有得到宽恕.
He threw himself on my mercy, ie begged me to show mercy. 他求我宽恕他.
a tyrant without mercy 无情的暴君.
2 [C usu sing 通常作单数]
(infml 口) event to be grateful for; piece of good luck 恩惠; 幸运
It's a mercy she wasn't hurt in the accident. 她在事故中未受伤, 真幸运.
His death was a mercy, eg He was in such pain that it was best that he died. 他的死是一种解脱（与其痛苦不如一死）.
3 (idm 习语) at the mercy of sb/sth in the power of sb/sth; under the control of sb/sth 任由某人[某事物]摆布或控制
The ship was at the mercy of the storm, ie out of control or helpless. 那只船在暴风雨中失去控制. be grateful/thankful for small mercies => small. an errand of mercy => errand. leave sb/sth to the mercy/mercies of sb/sth => leave1. throw oneself on sb's mercy (fml 文) beg sb to treat one kindly or leniently 恳求某人善待或宽恕. mercy, interj (dated 旧) (used to express surprise or (pretended) terror 用以表示惊讶或（故作的）惊恐)
Mercy (on us)! What a noise! 天哪! 多吵闹哇!