1.crack a smile
微笑；莞尔一笑，

2.smile from ear to ear
高兴大笑得合不拢嘴

3.be all smiles
笑容满面

4.force a smile
强颜欢笑

5.smile away
一笑置之

6.beam with smile
笑容满面

7.a hearty smile
会心一笑；开怀大笑

8.burst into laughter
突然大笑

9.grin with delight
高兴的咧嘴而笑

10.laugh it off
一笑而过

11.laugh oneself to death
差点没笑死

12.roars of laughter
大声笑

13.a saccharine smile
谄媚的笑

14.roll in the aisles
捧腹大笑，笑得东倒西歪

15.snicker
窃笑

16.shriek with laughter
尖声狂笑

17.smile shyly
羞答答地微笑

18.simmer with laughter
忍俊不禁

19.smile on sb.
朝某人微笑

20.smirk
傻笑；假笑

21.smile bitterly
苦笑

22.giggle
咯咯地笑

23.grin
咧嘴而笑




［from-英语美文］