1. chortle ['tʃɔːtəl] 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 ['tʃʌkəl] 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 [gə'fɔː] 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 ['sɪmpə] 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 [smɜːk] 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 ['snɪgə] 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 ['gɪgəl] 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 ['tɪtə] 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 [grɪn] 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。