I like climbing mountains in spring and autumn.

Shunju is one of the historical books in China.

He came to America as an immigrant when he was young.

In this area, beneficial animals play an important role in maintaining the balance of nature.

He entered the forest with a shotgun.

The specific gravity of this substance is higher than water.

This factory uses fuel oil as its main fuel.

I am planning to go to Chongqing next week.

He was obedient to what his parents said.