We are using software to simulate a new business model.

The fact that he likes that movie is truly a case of 'there's no accounting for taste'.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.

The Paleogene period was a very important time in the history of the Earth.

He likes to take a walk in the park at dusk.

His actions are always mysterious.

It's a pity that his talent is going to waste.

This song expresses a joyful feeling.