He sent a message to the enemy's position using a letter sent by arrow.

He is training every day to run fast.

He decided to act quickly and strongly when he sensed danger.

He moved ferociously like a lion.

He was bitten by a bush snake.

My mobile phone broke.

Kai is a kanji that is not often used these days.

A drop of water fell from the cup.

He knows the knack of cooking.

He gathered the wood chips and started a fire.