出煤量

An early English measure of land area of varying value, often equal to about30 acres(12 hectares). 威爾格英格蘭早期對不同價值的土地面積的丈量法，常相當于30畝(12公傾)

The reservoir keeps flood from400000 hectares of land. 這個水庫使40用項的土地免除了水災的威脅。

The refugees were at sea for forty days before reaching land. 這些難民在海上漂泊了40天后，他們的船才靠岸。

Mr Hill rents this land (out) to us at 500 a year. 希爾先生把這塊地租給我們，租金每年500英鎊。