This wall is made of chalky material.

He pasted a poster on the wall.

The quality of this product is very high.

This chalk is very pure, perfect for drawing pictures.

After the earthquake, a crack developed in the wall.

The content of this book is very high quality.

He pawned his watch to get money.

This building is surrounded by firewalls.

His favorite vase is placed in this niche.

I thought his plan was perfect, but in fact there were some flaws.