Should I double-lock the door?

要不要把门紧紧锁上？

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To view more information about the security, double click on the lock.

查看更多有关安全的信息，双击那个锁的图标。

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Toxic and rare metal, adhere to the double lock system.

剧毒和稀有金属，坚持双人锁制度。

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Toxic and rare metal, adhere to the double lock system.

剧毒和稀有金属，坚持双人锁制度。

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