“倍数”的用法　倍，就是与原数相等的数。倍数，只能用于数字的增加，不能用于数字的减少。如“增长多少倍”、“扩大多少倍”、“提高多少倍”；但不能说“降低多少倍”、“缩小多少倍”、“减少多少倍”。因为减少一倍就减完了。再无什么可减了。运用倍数时，还要注意词的 Multiples of the usage times, is equal to the original number. Multiple, can only be used to increase the number, can not be used to reduce the number. Such as “how many times”, “how many times” and “how many times”, but can not say “how many times to reduce”, “how many times to reduce” and “how many times to reduce”. Because doubled to reduce over. Nothing can be reduced. When using multiples, but also pay attention to the word