答案:Simile is a figure of speech in which one thing is compared to another quite different thing with comparative words "like" or "as", because they have something in common. Simile should exist with marked word indicating analogy, for example, he spends money like water. Metaphor is a figure of speech in which one thing is compared to another quite different thing without comparative word, because they have something in common, for example, the sea is the English character.