1, mu is the municipal land area unit in China, 15 mu = 1 hectare, 1 mu = 60 square meters, about 666.67 square meters. Then, half an acre is 30 square meters Abbott, which is about 333.34 square meters.

2. In some areas, a way of drinking on the wine table, the right hand picks up the glass, and the upper edge of the thumb is aimed at the upper edge of the wine in the glass. Then, the amount of alcohol corresponding to the lower edge of the thumb is "1 mu", and drinking 1 mu is the amount of alcohol corresponding to the upper and lower edges of the thumb. Then, half an acre is half the amount of "1 acre" mentioned above.