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

I need a replacement blade for my razor.

If the book is cheap, I should buy it.

We had a picnic on the river bank.

Mr. Kawagishi is my best friend.

My doubts about his actions deepened.

He was deceived by a swindler and lost a lot of money.

I take a walk by the riverside every day.

He measured the dimensions of the parts using a vernier caliper.

The police arrested the suspect.