微笑:smile
面露喜色:beam
笑出声:laugh
欢笑:laugh heartily
苦笑:wry smile
媚笑:ingratiating smile
偷笑:titter
坏笑:laugh viciously
冷笑:sneer
嘲笑:deride/mock/ridicule
咧嘴笑:grin
狂笑:guffaw
傻笑:smirk
轻声笑:chuckle
咯咯笑:giggle
爆笑:burst into laughter
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