Bioweapons are a major threat to humanity.

The children were playing by beating the pellet drum.

He was hesitant to start a new business, but I encouraged him by saying, 'There is a danger of tragedy in any attempt.'

He's always shouting loudly, but in reality, he's just a barking dog that seldom bites.

There is a proverb that says 'even a dog wouldn't eat a marital dispute,' so we should not interfere in their problems.

They say 'even a dog wouldn't eat a couple's quarrel', but our quarrels are not that serious.

I am planning to go to school tomorrow.

He sacrificed his time for the team.

This silkworm produces beautiful silk.

Physical education is my favorite class.