What she means is that there's no point in waiting here.
她的意思是说在这儿等下去没什么意义。
There's no point in waiting for him. He will never return.
等他已经没有用了，他不会回来了。
And so while you needed expressions for math to work, there was no point in making anything else return a value, because there could not be anything waiting for it.
所以，如果你需要用数学式子计算一个值，那就只有用表达式返回这个值，没有其他语法结构可用，因为否则就无法处理这个值。
He won't come; there be no point (in) waiting on.
他不会来的，再等下去是毫无必要的。
The plane may be several hours late, in which case there's no point in our waiting.
飞机可能会晚点多少个小时，要是那样，咱们等着就不什么意思了。
The plane may be several hours late, in which case there is no point in our waiting.
飞机可能会晚点几个小时，要是那样，我们等着就没什么意义了。
The plane may be several hours late, in which case there is no point in our waiting.
飞机可能会晚点几个小时，要是那样，飞机可能会晚点几个小时，要是那样，我们等着就没什么意义了。义了。
The plane may be several hours late, in which case there is no point in our waiting.
飞机可能会晚点几个小时，要是那样，飞机可能会晚点几个小时，要是那样，我们等着就没什么意义了。义了。
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