國中英文~ 因為字太多發不出去..?

辛苦一下，瞭解一下反身代名詞 -- 當主詞與受詞為同一人時，用反身代名詞為較正式用法
例如：
(O)I cut myself.
(X)I cut me.
(O)You cut yourself.
(X)You cut you.
(O)She cut herself.
(X)She cut her.
(O)We cut ourselves.
(X)We cut us.
本句：we 與 ourselves 為對稱之標準用法(us 與ourselves 的中文翻譯，不足以解釋文法與句型之合理運用，但當主詞不是We 時，例如改為The government，那當然沒必要用ourselves，而是us )
Because the dirty air hurts our health, we must do something to keep ourselves healthy.
Because the dirty air hurts our health, the government must do something to keep us healthy.

Because the dirty air hurts our health and must do something to keep ourselves healthy. In order to answer your question,, the next sentence should be written as; and not only must do something self but also to keep ourselves healthy. Yip