Sandstorms usually happen in spring .This year, the sandstorms started in late March. More than 70 million people have suffered from the storms. I met with a strong storm when I went to attend a speech this spring. The sky was dark and the land was covered with sand. Buses and cars all moved slowly. People couldn’t see things even 20 meters away. It was really terrible. I think everyone should try our best to protect our environment so that one day we can stop sandstorms from happening.