Silver salt plays an important role in photography.

This curtain is made of fire-retardant material.

My daughter goes to the nursery school every day by the commuting bus.

I send my son to the nursery school every day.

He was looking at the sea from the poop deck.

"Dream of the Red Chamber" is one of the four great literary works of China.

I got angry at his attitude.

What will you do during spring break?

This year's spring cocoon crop was very good.

I will definitely participate in next year's spring tournament.