仰望天空，甩甩脑袋，想要甩掉那沉重的忧愁。

Looking at the sky, Shuai Shuai head, you want to get rid of that heavy gloom.

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其中一个身穿亮蓝色风衣，他一边大声笑着，一边将看上去很重的书包朝着同伴的脑袋甩来甩去。

The one in the bright blue windbreaker was laughing and swinging a heavy-looking book bag toward the head of his friend, who kept ducking and stepping back.

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