twentieth

twentieth的英语例句

1. Brian counted to twenty and lifted his binoculars. Elena did the same.

   布赖恩数到20，举起了双筒望远镜。埃琳娜也照着做了。

2. By the time he's twenty he'll know everyone worth knowing in Washington.

   到20岁时，他就会认识华盛顿所有值得认识的人。

3. Take a hundred and twenty values and calculate the mean.

   取120个值计算平均数。