平方

1.数the second power (of a quantity); square

♦ 三的~是九。 The square of 3 is 9.

2. square metre (sq.m.)

♦ 那间房有十二~。 The room has a floor space of 12 sq.m.

~根 [数]square root~公里 square kilometre (sq.km.)~米 square metre (sq. m.)