laugh at

To treat lightly; scoff at

不以為意；對…一笑置之

a daredevil who laughed at danger.

魯莽大膽的蔑視危險(xiǎn)

laugh off 或 laugh away

To dismiss as ridiculously or laughably trivial

一笑置之：把……當(dāng)作滑稽可笑的瑣事而置之不理

laughed off any suggestion that her career was over.

對有關(guān)她事業(yè)生涯已經(jīng)結(jié)束的暗示置之不理

be laughing all the way to the bank

(informal)be making a great deal of money very easily

(非正式)發(fā)大財(cái)

have the last laugh

be finally vindicated, thus confounding earlier skepticism

笑到最后，最后得到證明

he who laughs last laughs longest

(proverb)don't rejoice too soon, in case your delight at your own good fortune is premature

(諺)誰笑在最后，誰笑得最好

laugh one's head off

laugh heartily or uncontrollably

大笑，狂笑不已

laugh in someone's face

show open contempt for someone by laughing rudely at them in their presence(figurative)(喻)

當(dāng)面嘲笑

vandals and muggers who laugh in the face of the law.

嘲笑法律的涂鴉者和搶劫犯。

the laugh is on me (或you, him等)

the tables are turned and now the other person is the one who appears ridiculous

我（你、他等）成了嘲笑對象

all the critics had laughed at him — well, the laugh was on them now.

所有的批評家都曾嘲笑他——啊，現(xiàn)在他們可成了嘲笑對象了。

laugh like a drain

(Brit. informal)laugh raucously

(英，非正式)大聲笑

a laugh a minute

very funny

非常滑稽

it's a laugh a minute when Lois gets together with her dad.

洛伊斯和爸爸在一起真逗人樂。

laugh on the other side of one's face ( 或北美

be discomfited after feeling satisfaction or confidence about something

轉(zhuǎn)喜為悲

laugh someone/thing out of court

dismiss with contempt as being obviously ridiculous

因可笑而鄙視，一笑置之

laugh oneself silly (或sick)

laugh uncontrollably or for a long time

笑個(gè)不停

laugh something to scorn

(dated)ridicule something

(舊)嘲笑