He is studying Japanese.

My family consists of five people.

'匸' is a pictogram from ancient China, representing the concept of enclosing something.

He can speak Arabic fluently.

My room number is two hundred and five.

I am studying German language.

He is interested in learning the Karelian language.

What does this wording mean?

We agreed to the plan.

He finally achieved his goal after an extremely long period of time.