二十年的

The campus is different from how it was 20 years ago).

校园和二十前样样了）。

She has conducted on London buses for twenty years.

她在伦敦公共汽车上担任了二十售票员。

We may as well assert that because a child has thriven upon milk, that it is never to have meat, or that the first twenty years of our lives is to become a precedent for the next twenty.

你还如说，因为个孩是吃长大，所以他永远该吃肉，或者说，我们生开头二十应该成为第二个二十例。