Vast tracts of the country are wild and undeveloped.

这个国家有大片荒芜未开发的土地。

When you read about 'em in tracts they're always very religious.

当你在传单上读到他们的时候，他们总是非常虔诚。

He sought Ben Rogers, and found him visiting the poor with a basket of tracts.

他找到了本·罗杰斯，发现他带着一篮子布道的小册子去拜访穷人。

They opened up large tracts of wasteland.

他们开垦了大片荒地。

Large tracts of wasteland have become a granary.

荒滩变成米粮川。