burst into laughter 突然大笑

crack a smile 展颜微笑，莞尔一笑

explode with laughter 哄堂大笑

force a smile 强作欢颜

burst into gales of laughter 爆发出阵阵笑声

grin with delight 高兴的咧嘴而笑

a hearty burst of laughter 一阵爽朗的欢笑

in stitches 笑不可支

laugh at 嘲笑

laugh it off 一笑而过

laughingstock 笑料；笑柄

laugh in the breeze 迎风欢笑

laugh oneself to death 差点没笑死

laugh people around into a better humour 笑得周围的人心情好起来

laugh a hearty laugh 放声大笑，开怀大笑

laugh and grow fat 心宽体胖

roars of laughter 大笑声

a saccharine smile 谄笑，谄媚的笑

roll in the aisles 乐不可支，笑得东倒西歪

scream with laughter 笑得前仰后合

snicker 窃笑

snort （讽刺、轻蔑地）高声大笑

shriek with laughter 尖声狂笑

smile shyly 羞嗒嗒地微笑

beam with smiles 笑容满面；笑逐颜开

be all smiles 笑容满面, 喜气洋洋

toothpaste smile [美口]牙膏广告上露出皓齿的微笑

simmer with laughter 忍俊不禁

smile on sb. 朝某人微笑

smirk 傻笑；假笑

smile bitterly 苦笑

giggle 咯咯地笑

grin 咧嘴而笑

grin from ear to ear 嘴咧得大大地笑

chuckle 轻声笑；咯咯笑


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（英语点津姗姗编辑）