Obviously, once the memory is exhausted, the performance of the server decreases, so we must also pay attention to how much memory we're using when we execute our scripts.
很明显，一旦内存被耗尽，服务器的性能就降低，因此在执行脚本时我们还必须注意内存的使用情况。
So in our daily communication, we'd better pay much more attention to the habit usage of language, in the hope that we can not only learn English well but also use it in the correct situation.
所以在我们的日常交际当中，我们需要注意语言的习惯使用，我们不仅要把英语学好，还要会把它使用在正确的场合。
They should also pay all bills immediately at the start of each month so that they will know exactly how much money remains for future expenses.
每个月月初，一接到所有账单就应该立刻付款，这样可以确切知道还剩下多少钱可以用。
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