I was surprised when I read the true record of this incident.

He cited the delay of the train as an excuse for being late.

Linear programming is a part of operations research and is used to find the optimal solution.

Paying the urban planning tax is a citizen's duty.

The United Nations Environment Programme is providing solutions to global environmental problems.

His work depicts a world of surreality.

He is an expert in pomology and has contributed to the improvement of many fruit varieties.

I saw the Prunus serrulata flowers blooming in the park.