?捧腹大笑
ROTFL=Rolling on the floor laughing (捧腹大笑): e5 Y* S0 V/ l k8 W ROTFLMAO=Rolling on the floor laughing my *** off (捧腹大笑.
?笑得在地上打滚
在这里先科普一下，LMAO=Laugh My Ass Off（笑翻了），而我们的ROTFL=Rolling on the Floor Laughing（笑得在地上打滚），是不是很像啊！
?笑到在地上打滚
笑到在地上打滚， 笑到不行了 rolling on the floor laughing 终止的, 疲倦的, 输了的, 不行了的 washed-up ..
But of course, Rolling On the Floor Laughing will not get you those much-needed budgets.
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All right, stop laughing and rolling around on the floor -- get up.
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。