Happiness does not depend on what you have or who you are, it solely relies on what you think. =Happiness is a state of mind.快乐并非是取决于你有什么或是你是谁，它完全取决于你怎么想。
单词记忆:depend vi.依赖;依靠;信赖;决定于depend on 依靠； 依赖solely adv.仅仅;纯粹;唯一地;独一无二地rely vi.依靠，倚赖，仗恃;信任，信赖
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