A male crab met a female crab and asked her to marry him. She noticed that he was walking straight instead of sideways. Wow, she thought, this crab is really special. I can't let him get away. So they got married immediately. The next day she noticed her new husband walking sideways like all the other crabs, and got upset. "What happened?" she asked." You used to walk straight before we were married." "Oh, honey, " he replied, "I can't drink that much every day. 一只雄蟹遇到一只雌蟹，便要娶她为妻。她注意到他走路是直着走，而不是横着走。哇！她想，这只雄蟹可真特别，我可不能让他跑了。因此他们立刻结婚了。第二天，她又发现她的新郎像其他蟹一样横着走路了。她深感不安。“你怎么了？”她问，“我们结婚前你可是直着走路的。”“哦，宝贝，”他回答说，“我不可能每天都喝那么多。”