eighty是什么意思?

eighty
KK:[]
DJ:[]
n.
1.八十[C]
Eighty divided by four equals twenty.
八十除以四等于二十.
2.八十个;八十人[K]
3.八十岁[U]
4.八十年代;八十到八十九岁[the P]
a man in the eighties
一个八十多岁的人
a.
1.八十的;八十个的;八十人的
2.八十岁的[F]
His father is eighty.
他父亲八十岁.