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liuxuepaper.com