Your upper and lower body should always be in sync.

你的身体上下应始终同步。

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You will now be responsible for keeping this information in sync.

这时要由您自己来负责保持该信息同步。

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In addition, the two documents must be kept in sync.

此外，这两个文档还必须保持同步。

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In addition, the two documents must be kept in sync.

此外，这两个文档还必须保持同步。

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