当我谈到长度单位米，这是人们都认同的一个术语。
长度的基本单位是“米”，这是常识。
The elementary unit of length is the "meter", it's common knowledge.
中国的长度计量单位，一尺等于三分之一米。
米是长度单位，而公斤是重量单位。
A metre is a measure of length and a kilogram is a measure of weight.
米是长度单位，而公斤是重量单位。
A metre is a unit of length and a kilogram is a unit of weight.
米是长度单位，而公斤是重量单位。
A metre is a unit of length and a kilogram is a unit of weight.
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