Without whale oil, so the thinking went, the world would slide backward toward darkness.

按照这样的思维下去，如果没有鲸鱼油，世界将会倒退回黑暗时代。

youdao

There's still a lot of backward thinking among men.

人们中间仍有大量的落后思想。

youdao

There's still a lot of backward thinking among men.

人们中间仍有大量的落后思想。

youdao