What is that target?

He is my biggest enemy.

His advice was very practical.

His target-like way of thinking is hard to understand.

He always proactively suggests new ideas.

I maintain my health by doing aerobic exercises every day.

He is always grumbling about trivial things, it's really annoying.

There are no words to describe that beauty.

He is good at solving technical problems.

He always has an optimistic attitude.