更重要的是，早晨的空气干净清新，这样我就能在课堂上保持一颗清醒的头脑了。
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.
更重要的是，早晨的空气干净清新，这样我就能在课堂上保持一颗清醒的头脑了。
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.
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