one.two.three.four.five.six.seven.eight.nine.ten.elevent.twelve.thirdteen.forteen.fifteen.sixteen.seventeen.eighteen.nineteen.twenty.望采纳 one.two.three.four.five.six.seven.eight.nine.ten.elevent.twelve.thirdteen.forteen.fifteen.sixteen.seventeen.eighteen.nineteen.twenty.望采纳