不同元素的原子，以简单的整数比化合成化合物。
Atoms of different elements combine in simple whole number ratios to form compounds.
任何一种简单醇类都是有大量的碳分子和氢分子(如同碳氢化合物，譬如汽油)以及单个氧原子组成。
Any simple alcohol is composed of a number of carbon and hydrogen atoms (like a hydrocarbon such as petrol) together with a single oxygen atom.
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