Environmental issues are becoming more serious day by day.

Our company is promoting the diversification of products.

We need to diversify our product line.

When spring comes, the snow thaws and flows into the river.

Winter ended, and the snow began to thaw.

The landscape of the countryside has changed due to the progress of urbanization.

This area is rapidly urbanizing.

Erhua in Beijing dialect is a characteristic phonetic phenomenon.

We use encryption to protect important data.

We need to encrypt important data.