2. By the mouth of the tunnel he bent to retie his shoelace. 到隧道的入口处，他弯腰重新系了系鞋带。
3. But it does have an important purpose; it is sort of like the plastic tip on each end of a shoelace. 但它确实有一个重要的目的。它有点像鞋带两端的塑料头。
4. Who wipes peanut butter off a cheek and crayon off the wall and knots an untied shoelace to avoid a likely fall? 是谁擦去脸颊上的花生酱和墙上的蜡笔画，还会把鞋带打结以防摔倒？
5. They may point down to your shoe and say, "Your shoelace is untied." If you believe them and look down to see, you are an April Fool then. 他们可能会指着你的鞋子说：“你的鞋带开了。”如果你真的相信了并向下看，你就成了愚人节傻瓜。
