because是詞性

She had left him because of his drinking.

她離開了他，因爲他酗酒。

They knocked off $60 because of a scratch.

因爲有擦痕他們將價格降了60元。

John liked him because he was a nervy guy.

約翰喜歡他，因爲他是個不怕事的傢伙。