. 就我所知,北京因它悠久的历史和丰富的文化而闻名于世。
As far as I know, Beijing is famous for its long history and rich culture.
We should stop people from cutting down trees.
We should do our best to stop animals from dying out.
It’s necessary to do some cleaning every day.
. 这儿有许多可做的,例如,你可以帮助打扫干净城市公园。
There is much to do here, for example, you can help clean up the city parks.
In a word, it’s very important for us to protect the environment.
Why not save the animal in danger as early as possible?
I think it’s better to recycle waste paper instead of throwing it away.
I think that our city is in need of water.
I would like everyone to join in the environment project.
It’s good for the environment to keep off the grass.
We should keep on taking care of our environment.