He was running while holding a bag.

He always carries an umbrella around.

He found the target and shot the arrow.

Personally, I think this movie is the best.

We conducted a spectral analysis to investigate the spectral characteristics of this substance.

Please use the emergency stairs in case of a fire.

Due to the earthquake, the city declared a state of emergency.

He is passionate about researching pure mathematics.

He is majoring in applied mathematics at university.

He is a world-famous mathematician.