flog
verb [ T ] uk/flɒɡ/ us/flɑːɡ/ -gg-
(PUNISH)
（作为惩罚）鞭笞，棒打
to beat someone very hard with a whip (= a long, thin piece of rope, leather, etc.) or a stick, as a punishment
Soldiers used to be flogged for disobedience. 过去士兵们会因不守军令而遭鞭笞。
(SELL)
UK informal（尤指迅速或廉价地）出售
to sell, especially quickly or cheaply
He tried to flog his old car, but no one would buy it. 他想快点儿卖掉他的旧车，但没人愿意买。
Idioms
flog yourself to deathidiom UK informal (also flog yourself into the ground) 工作过于努力
to work too hard
flog something to deathidiom UK informal 频繁使用（或做、说）…而使人失去兴趣
to use, do, or say something so often that it is no longer interesting
It's a theme that's been flogged to death. 这是一个老生常谈的主题。
flog a dead horseidiom UK informal (US informal beat a dead horse) 做无用功，做徒劳无益的事
to waste effort on something when there is no chance of succeeding
He keeps trying to get it published but I think he's flogging a dead horse. 他一个劲儿地想将其出版，但我认为他在白费力气。