chuckle 轻声笑
a soft partly suppressed laugh
轻声地笑，克制地笑
被逗乐了，但是控制情绪
He chuckled at his own joke.
他开了个玩笑，自己轻笑了一下
I chuckled at the astonishment on her face.
我暗自笑她脸上露出的惊讶表情
guffaw 狂笑、哄笑
a burst of deep loud hearty laughter
开怀大笑，发出很大笑声,纵情的
let out a loud guffaw 发出哄然大笑
They all guffawed at his jokes.
他们听了他的笑话都一阵狂笑
She let out a loud guffaw
她嘎嘎大笑起来
smirk 得意地笑
得意或轻蔑
A smirk flickered at the corner of his mouth
as he watched my struggle.
他看我挣扎的样子，嘴角闪过一丝幸灾乐祸的。
He made no attempt to conceal his smirk.
他毫不掩饰自鸣得意的笑
beam 笑容满面，眉开眼笑
书面用词,指人因心权情舒畅而发出的笑,即喜形于色地笑.
因为某些事而感觉到幸福、愉悦、骄傲
He beamed with pleasure at seeing her.
看到她，他眉开眼笑。
Her face beamed when she exclaimed this.
她喊这句话的时候，脸上满是笑容。
simper 痴笑,假笑，傻笑
to smile in a silly and annoying way
矫揉造作地笑；扭捏作态地笑
傻气而讨人厌的笑法,笑得忸怩作态，或带些嘲讽
He had small, watery eyes, a pointed nose,
and wore an unpleasant simper.
他长着一双水汪汪的小眼睛，尖鼻子，脸上堆着不自然的假4
ridicule 嘲笑、嘲弄
to make sb/sth look silly by laughing at them
or it in an unkind way
嘲笑、讥笑、讪笑，指不怀好意得嘲笑别人，
表示内心的轻蔑、看不起
I was ridiculed for my sartorial gaucherie.
我因为做缝纫活笨手笨脚而被人嘲笑。
You mustn't ridicule unfortunate people.
你不该嘲笑不幸的人。
grin 露齿而笑
a facial expression characterized by
turning up the corners of the mouth;
usually shows pleasure or amusement
嘴角上扬，露齿笑，通常表达愉快、开心的心情
grin cheekily 嘻皮笑脸
grin sheepishly 腼腆地露齿而笑
Crocs flash a toothy grin, even when their mouths are shut.
鳄鱼会露出露齿的笑容，即使是闭着嘴的时候。
I know she is joking because she has a big grin on her face.
我知道她是在开玩笑,因为她满脸笑容
titter 尴尬偷笑
to laugh quietly, especially in a nervous or embarrassed way
（尤指紧张或尴尬地）傻笑，嗤嗤地笑；窃笑
a nervous restrained laugh
克制的，难为情的，或做作的笑
因为紧张或尴尬而笑,没掩饰好的开心
Merlin began to titter nervously.
梅林紧张地低笑起来。
sneer 冷笑
to smile or speak in a very unkind way that shows
you have no respect for someone or something
冷笑;嘲笑;讥讽
to show that you have no respect for sb
表示你不尊重某人，轻蔑
Snape turned back to face them, sneering.
斯内普回身看着他冷笑着。
Malfoy sneered and motioned Harry and Ron to follow him.
马尔福冷笑一声，示意罗恩和哈利跟他走
