Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

I am busy with work during the day.

I work during the daytime.

In this museum, the entrance fee varies according to three age categories: adults, middle-aged, and children.

Kainaka is my best friend.

He gets excited about creampie in adult videos.

I am interested in the culture of China.

He is good at reading Chinese text.

He is researching the functions of the midbrain.

He was watching the television relay.