He made a demand to the company for a raise in salary.

He is researching about a new energy source.

My father is good at playing the erhu.

He got lost in the library that was like a maze.

I was born and raised in Nangong City.

I need a little rest after working all day.

He is known as an extremist of that political party.

He enjoyed dinner at a high-class restaurant.

We have to do something about this crisis situation.

He made an unreasonable demand on me.