The definitions of the two times-table functions are remarkably close, but the new version is considerably more useful (as you can see from the three invocations in Listing 3).
两个乘法表函数的定义非常相近，但清单3中的函数有用得多(通过清单3中的3次调用即可看出这一点)。
2
People occupy valuable table space in quiet times.