20到100的英文整十是：20 twenty、30 thirty、40 forty、50 fifty、60 sixty、70 seventy、80 eighty、90 ninety、100 one hundred.

twenty：num.二十;二十几;二十年代。

Twenty guests are enough, I would have thought.

我觉得二十位客人就够了。

There were twenty or so people there.

那儿有差不多二十个人。

Pick a number from one to twenty.

从一至二十中挑选一个数。

The two events are separated in time by one hundred years.

这两事件在时间上相隔一百年。

A career as an actor requires one hundred per cent commitment.

干演员这一行需要百分之百的投入。