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hidden
01
隐
unable to be easily seen or found
02
隐
little known or not widely recognized by most people
例子
The hidden microphone picked up whispers from across the room.
He discovered the hidden compartment in the attic while cleaning out old boxes.
The hidden treasure was buried deep underground, waiting to be discovered.
The hidden compartment in the wall kept valuables safe from thieves.
The solved puzzle revealed the hidden message.
