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客人来访,伸手敲门,这是生活中常见的现象。然而,不知你曾注意到没有,从“哒哒哒”的敲门声里,大致可以判断出来访者的秉
Guests visit, reach for the door, this is a common phenomenon in life. However, I do not know if you ever noticed, from the “da da da” knock on the door, you can roughly determine the visitors