He paid for the travel expenses in advance.

Our submarine carried out a torpedo attack against the enemy fleet.

The battleship sank due to the enemy's torpedo attack.

Suddenly, a sound like a thunderclap echoed.

Every time the thunder roared, he was startled like a lion.

Horai is considered a land of immortality in Chinese mythology.

He is participating in the activities of helping the lepers, and is doing his best to help patients with leprosy.

Mycobacterium leprae is the bacterium that causes leprosy.

The doctor told him that he might have been infected with leprosy bacteria.

He caught a big snakehead in the river.