He is an expert in cryptography and is involved in the development of security systems.

My new work clothes are very comfortable.

The empress dowager is living quietly in the palace.

He started learning Ainu language.

I often play golf on weekends.

He was chosen to guard the president.

We go to the playhouse to watch a play on the weekends.

We spent the night in a mountain hut.

He mixed coffee and milk.

I like solving Tsumego problems.