1. Two widely separated strings hang from a ceiling. Even though you can't reach both at once, is it possible to tie their ends together, using only a pair of pliers?
    两根相距甚远的绳子分别从天花板上垂下来。尽管你无法同时够到两根绳子，但有没有可能只用一把钳子就把两根绳子系到一起呢？

2. One college student tied the pliers to one string and set it in motion like a pendulum.
    一位大学生把钳子系到一根绳子上，然后让它像钟摆那样摆动起来。