He says that what you like to do, you do well, so he practices drawing every day.

He is skillful at playing the piano.

He is good at playing the piano.

He solved a large number of problems.

Understanding numbers is important for solving math problems.

He was bedridden with illness for several days.

I can't solve this problem because there are too many numbers.

Please clean up your room right now.

Toshin came up with a sagacious way to solve the problem.

He is outstanding in his field.