He has deep knowledge about science.

We are proceeding with the land exchange process.

He exchanged land with his neighbor.

His talk was monotonous and boring.

I think that person is what you call a 'chuunibyou'.

When spring comes, Asian Dust falls like rain.

My mastiff is very big and strong.

I was late for the meeting because the train was delayed.

The train was delayed, so I was late for the meeting.

The doctor collected my bodily fluid for testing.