My younger brother caught the influenza.

This fashion spread quickly.

He is an expert in fluid mechanics.

This area is equipped with a sewer installed by the prefecture, making life very convenient.

The Brachiosaurus was a very large dinosaur.

Please remember this old proverb, 'The friendship of a gentleman is insipid as water.'

His efforts were like a mantis trying to stop a chariot, he couldn't achieve any results.

He is researching on the pathogenesis and treatment of early-onset diabetes.

This area is rich in bedded cupriferous iron sulphide deposits.