1. chortle
chortle, n./v. laugh in a way that shows you are very pleased, 开心地笑
例句：There was silence for a moment, then Larry began chortling like an idiot.翻译：一片寂静之后，拉里开始像个白痴一样哈哈大笑。
2. chuckle
chuckle, n./v. a soft partly suppressed laugh ;laugh quietly or with restraint，轻声笑
例句：He gave a little chuckle.翻译：他轻声一笑。
3. guffaw
guffaw, n./v. a very loud laugh;laugh loudly，哄笑，大笑
例句：As they guffawed loudly, the ticket collector arrived.翻译：正当他们哈哈大笑时，检票员来了。
4. simper
simper, n./v. a silly self-conscious smile;smile affectedly or derisively, 傻笑，假笑
例句：The maid lowered her chin and simpered.翻译：侍女低头傻笑了一下。
5. smirk
smirk, n./v. to smile in an affected or smug manner; smile affectedly or derisively, 傻笑，得意地笑，幸灾乐祸地笑
例句：Two men standing nearby looked at me, nudged each other and smirked.翻译：站在旁边的两个男人看着我，互相用胳膊肘轻碰对方，幸灾乐祸地笑着。
6. snigger
snigger,n./v. a disrespectful laugh; laugh quietly，暗笑，窃笑
例句：Suddenly, three school kids sitting near me started sniggering.翻译：突然，坐在我身边的3个学童偷偷地笑了起来。
7. giggle
giggle，n./v. to laugh in a nervous or childlike way，紧张得咯咯笑
例句：I was so nervous I got the giggles.翻译：我紧张得咯咯笑个不止。
8. titter
titter， n./v. to laugh in a quiet and nervous way，窃笑
例句：Mollie gave an uneasy little titter.翻译：莫莉不自在地微微窃笑了一下。
9. grin
grin，n./v. a broad smile ; you smile broadly， 咧嘴笑，露齿而笑
例句：Sarah tried several times to catch Philip's eye, but he just grinned at her.翻译：萨拉几次试图吸引菲利普的注意，但他只是对她咧嘴笑笑。
