His book collection is very extensive, including many rare books.

Kuraji-san is my best friend.

We decided to add new equipment.

We are planning a budget to add new equipment.

This box holds precious memories.

He is an expert in shipbuilding.

I am majoring in image processing at university.

A river dolphin is a rare type of dolphin that lives in freshwater.

If the book is cheap, I should buy it.

I need a replacement blade for my razor.