Ridgebacks

Practice tenses as much as possible.

操练各种时态。

A book is the same today as it always was and it will never change.

一本好书今天如此，将来也如此，永不改变。

The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。