第四天：我和我的好朋友一起去登山，锻炼身体的同时还能看看青山绿水，感受大自然的气息。
Fourth day: I and my friends together to mountaineering, while training the body to see blue, feeling nature atmosphere.
第四天：我和我的好朋友一起去登山，锻炼身体的同时还能看看青山绿水，感受大自然的气息。
Fourth day: I and my friends together to mountaineering, while training the body to see blue, feeling nature atmosphere.
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