burst into laughter 突然大笑起来
burst with laughing 捧腹大笑
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 高兴得裂开嘴笑
a hearty burst of laughter 一阵尽情的欢笑
in stitches 笑不可支，忍不住大笑
an infectious laugh 有感染力的笑声
laugh in the breeze 迎风欢笑
laugh oneself to death 笑得要死
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 笑得发胖，心宽体胖
laugh at a joke 听了笑话而发笑
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 放声大笑
scream out one’s laughter 放声大笑
flip one’s lid 失声狂笑
shout with laughter 大声笑
snicker 窃笑；窃笑着说
snort （讽刺地）高声大笑
shriek with laughter 尖声狂笑
smile shyly 羞嗒嗒地微笑
simmer with laughter 忍俊不禁
smile on sb. 朝某人微笑
smirk 傻笑；假笑
smile bitterly 苦笑
