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閲讀理解Noairmeansdeath.Thoughwecannotseeit,thereisairallar...
  • 閲讀理解Noairmeansdeath.Thoughwecannotseeit,thereisairallar...

  • 問題詳情:閲讀理解Noairmeansdeath.Thoughwecannotseeit,thereisairallaroundus.Soairiseverywhereanditgiveslifetoeverylivingthing.Withoutitwecannotlive.Badairmakespeopleill.Wemusthavefresh(新鮮的)airtokeepusingoodhealth(健康).Inthecitytherearemanypeopleandt...
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