You'll improve your balance and tone your core muscles while sitting at your desk.

这有助于提高你的平衡能力并增强你的核心肌肉。

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Because most of you are sitting in the front, the plane is off balance.

因为你们大多坐在前面，现在飞机重心失衡。

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Because most of you are sitting in the front, the plane is off balance.

因为你们大多坐在前面，现在飞机重心失衡。

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