My dream is to become a neurosurgeon.

He is an expert in ethology.

We went on a trip using the expressway.

He is conducting research on superconductivity.

Arthropods are a large group of animals that include insects, spiders, shrimp, and crabs.

Homophonic words are difficult, aren't they?

He is majoring in zoology at university.

We went on a trip using the highway.

He is interested in the study of Onmyodo.

They opposed the plan in concert.