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To understand the meaning of a sentence， we must consider the speaker's intention and the context of the utterance.

我們的遺產將由我們今天如何對待森林來定義。

Respect nature and follow its course.

如果你想擁有從未有過的東西，就必須愿意做從未做過的事。

Sometimes you have to lose yourself before you can find anything.

我認為拍好電影的關鍵是確保觀眾關心角色。