His dream is to fly in the sky in a hot-air balloon.

He wants to make a car that can fly in the air.

His room was empty of air, making it hard to breathe.

His dream is to fly in the sky in a hot-air balloon.

We flew in the sky in a hot-air balloon.

I fell asleep immediately last night.

Nonmigratory fish on the seabed, known as 'netsukiuo', do not move around.

This plant has strong rootedness, so it grows quickly even if transplanted.

I ate a whole fish for the first time.

Recently, I've been having trouble going to sleep.