问题描述：
猜猜看Do you know who they are?
Two little brother,
live near each other.
One lives on the other side.
They hear what you say,
But they don’t see each other.
Do you know who they are?
Two little brother,
live near each other.
One lives on the other side.
They hear what you say,
But they don’t see each other.
Do you know who they are?
问题解答：
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