He is specially studying mathematics.

He is doing a specialized study in economics.

He was sent abroad as a special envoy.

Urajiosutoku is a city in Russia, which is also close to Japan.

My friend lives in Urajiosutoku (Vladivostok).

People with a sincere character are easy to trust.

He finally achieved enlightenment after many years of training.

He finally became enlightened after many years of training.

He decided to abandon his vice and walk the righteous path.

His condition is seriously ill, and he needs surgery immediately.