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

Winter ended, and the snow began to thaw.

We use encryption to protect important data.

We need to encrypt important data.

Industrialization promotes economic growth.

This building needs repairs because it is deteriorating.

This building needs repairs because it has worn out.

The environmental issues are becoming more serious.

Environmental issues are becoming more serious day by day.

We need to diversify our product line.