He noticed that someone was behind him.

We go to the playhouse to watch a play on the weekend.

My favorite snack is sesame salt.

He is known as an arm-twister in the company.

My grandfather taught me the technique of catching gobies.

He used the technique of goby catching in the river.

This dress is made of rayon.

Acridine is an important compound in organic chemistry.

This camera has a dust protection feature, so you can use it with confidence even in the desert.

I think she is truly a beautiful woman.