参考译文

Guests for dinner
晚餐宾客

There was this little kid who had a bad habit of sucking his thumb. His mother finally told him that if he didn't stop sucking his thumb, he'd get fat.
Two weeks later, his mother had her friends over for a game of bridge. The boy points to an obviously pregnant woman and says, "Ah, ha! I know what you've been doing!"

一个小家伙老喜欢吮自己的大拇指, 这可是个坏习惯。他妈姐最后跟他说，如果他再吮大拇指的话，他就会变得很胖。 两个星期后的一天，她妈妈正跟几个朋友在玩桥牌。小家伙指着一个因怀孕而体型明显发胖的女人说，“啊，哈! 我知道你一直在做什么!”