The Thujopsis dolabrata tree is unique to Japan, characterized by its beautiful green color.

In old Japan, it was a problem that moths would eat clothes.

He is still a fledgling and doesn't understand much about the adult world.

He attended the party wearing a mask.

If I do say so myself, I think this dish is the best one I've ever made.

He often forgets himself because he is too absorbed in his work.

He accepted the challenge with an audacious attitude.

I was surprised by his audacious attitude.

He passionately discussed the problem of other minds in his philosophy class.

We must cooperate to solve this problem.