half of sb/sth
[用作单]一半的…
She had to sell half of her furniture.她不得不卖掉一半的家具。
They ate half of the cake.他们把蛋糕吃掉了一半。
The holiday was expensive, so I paid for half of it.这次度假费用很高, 因此我付了一半的费用。
(functioning as plural)半数的…
Half of them are coming.他们有一半人正赶过来。