He is a world-famous judoka.

By looking at the moving average of stock prices, you can grasp the trend of the market.

He continued hard labour all day long.

I perform work every day.

What is the motive for his actions?

These two circles are concentric.

We all worked together with one heart and mind to make this project a success.

He was riding a bicycle on the public road.

The hutongs in Beijing reflect the life of ancient China.

His behavior is flexible like an adjectival noun.