multiple pumping log

例句：

1. 1. The company employs a large number of employees.
   这家公司雇佣了大量的员工。
2. 2. There are many different types ofcars on the market.
   市场上有各种各样的汽车。
3. 3.The teacher had multiple explanations for theproblem.
   老师对这个问题给出了多种解释。