into laughter 突然大笑

2.crack a smile 展颜微笑，莞尔一笑

3.explode with laughter 哄堂大笑

a smile 强作欢颜

into gales of laughter 爆发出阵阵笑声

with delight 高兴的咧嘴而笑

7.a hearty burst of laughter 一阵爽朗的欢笑

stitches 笑不可支

at 嘲笑

it off 一笑而过

ngstock 笑料；笑柄

in the breeze 迎风欢笑

oneself to death 差点没笑死

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

a hearty laugh 放声大笑，开怀大笑

and grow fat 心宽体胖

of laughter 大笑声

18.a saccharine smile 谄笑，谄媚的笑

in the aisles 乐不可支，笑得东倒西歪　　

with laughter 笑得前仰后合

21.snicker 窃笑

22.snort （讽刺、轻蔑地）高声大笑

23.shriek with laughter 尖声狂笑　

shyly 羞嗒嗒地微笑

with smiles 笑容满面；笑逐颜开

all smiles 笑容满面, 喜气洋洋

aste smile [美口]牙膏广告上露出皓齿的微笑

with laughter 忍俊不禁

on sb. 朝某人微笑

傻笑；假笑

bitterly 苦笑

咯咯地笑

咧嘴而笑

from ear to ear 嘴咧得大大地笑

35.chuckle 轻声笑；咯咯笑