• 我们必须保持空气清新保证我们健康。

    We must have fresh air to keep us in good health.

    youdao

  • 树吸收二氧化碳,释放氧气,从而保持空气清新

    Oxygen and carbon dioxide from the air enter through the stoma.

    youdao

  • 柠檬可以干燥冬天保持空气清新潮湿,同时起到空气清新加湿器的作用。

    Freshen and moisturize the air in your home on dry winter days.

    youdao

  • 保持空气清新

    Keep the air fresh.

    youdao

  • 更重要早晨空气干净清新这样就能在课堂保持清醒的头脑了。

    What's more, the air in the morning is really fresh and clean, so I can keep my mind clear and sound in the class.

    youdao

  • 保持缓慢的通风始终呼吸清新空气

    A constant slow air is obtained, make the wine breathed with the fresh air.

    youdao

  • 开窗通风,保持病室空气清新

    Please open the window to keep the air in the ward fresh.

    youdao

  • 树木有助于空气保持清新

    Trees help keep the air clean.

    youdao

  • 树木有助于空气保持清新

    Trees help keep the air clean.

    youdao

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