burst into laughter 突然大笑

    crack a smile 展顏微笑，莞爾一笑

    explode with laughter 哄堂大笑 

    force a smile 強作歡顏

    burst into gales of laughter 爆發(fā)出陣陣笑聲

    grin with delight 高興的咧嘴而笑 

    a hearty burst of laughter 一陣爽朗的歡笑 

    in stitches 笑不可支 

    laugh at 嘲笑 

    laugh it off 一笑而過

    laughingstock 笑料；笑柄 

    laugh in the breeze 迎風歡笑 

    laugh oneself to death 差點沒笑死 

    laugh people around into a better humour 笑得周圍的人心情好起來

    laugh a hearty laugh 放聲大笑，開懷大笑 

    laugh and grow fat 心寬體胖

    roars of laughter 大笑聲 

    a saccharine smile 諂笑，諂媚的笑 

    roll in the aisles 樂不可支，笑得東倒西歪 

    scream with laughter 笑得前仰后合

    snicker 竊笑 

    snort （諷刺、輕蔑地）高聲大笑 

    shriek with laughter 尖聲狂笑

    smile shyly 羞嗒嗒地微笑

    beam with smiles 笑容滿面；笑逐顏開

    be all smiles 笑容滿面, 喜氣洋洋

    toothpaste smile [美口]牙膏廣告上露出皓齒的微笑

    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 輕聲笑；咯咯笑