Hu knock
A toy  A toy. The shape of a diabolo. "Water Margin" 90th back: "out of the city, and saw a guy on the market, holding something, and two clever stick, wearing a small claim in order to affect hand, it will affect things. SUNG met, do not know the ... ... asked: 'This is what things?' That guy replied: 'This is the knock Hu also. hand-led, natural sound'. "
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