这位管理员正站在门口，腰带上挂着一串钥匙。
The caretaker, a bundle of keys hanging from his belt, was standing at the door.
它使用一个管理员的关键加密和解密的所有档案，所以你不必记住多个钥匙多个档案。
It USES one administrator key to encrypt and decrypt all your files, so you not need to remember multiple keys to multiple files.
注意观察动物们所在的笼子的颜色和管理员的钥匙的颜色是否匹配。
Notice the colors on the cages and how the zookeeper's keys match the colors.
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