I ate a dish made from a fish known as 'shusseuo' for the first time.

He threw in a huge amount of money like a boat-swallowing fish to make the project successful.

This restaurant uses substitute fish when expensive types of fish are not available.

This carnivorous fish eats other small fish.

Reeves' shad is a fish commonly seen in rivers in Japan.

The history of the Empire of Japan is very interesting.

He solved the problem in a scientific way.

This reaction occurs through a chemical process.

He is good at tactical thinking.

He exercises every day and leads a healthy life.