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The answer to this riddle is "doorbell". The doorbell doesn't ring when no one is around, but it rings when someone approaches. In the same way, the doorbell is used when you enter the door and is no longer needed after entering the door.
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Doorbell. Key. Handle.
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You can look in the mirror and you'll see the result!
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The answer is "locks".
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It should be a doorbell.
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Use it when no one is around, don't use it when you're there, use it when you enter the door, don't use it when you enter the door, hit an animal.
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The answer should be dogs.
The answer should be: keys.
Use the key to open the door when no one is around, not to use it when someone is there (someone to open the door for you), to unlock the door when you enter, and to leave the key there when you enter the door. >>>More
This description seems to be a question posed in the form of a riddle. According to your description, what is the answer to this riddle? According to the riddle's description, this item is used when there is a person, and is not used when there is no one, and is required to be used when entering the door, but is no longer used after entering the door. >>>More
Mystery: Door locks.
Key. Key. Key. Key. Key.
It must be a dog, and it should refer to the lock, and the lock is also called the watchdog, so it's a dog.