I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.

It is important to understand the importance of health.

My teammate is very helpful.

We understand that teamplay is necessary for us to succeed.

He and his twin brother are as alike as two peas in a pod.

He and his brother are as alike as two peas in a pod.

He has the alias 'Genius' because of his talent.

He cut the apple into exactly two equal parts.

His heart was broken in two.