After the accident, he learned to use an artificial limb.

Mr. Yamagishi is my best friend.

Formic acid is a compound often used in organic chemistry.

Formate is an important compound in organic chemistry.

My sister-in-law is a doctor.

My parent-in-law is very kind.

He escaped from the police with a perfect disguise.

I will head to Tokyo by night train.

My grandmother takes out her dentures every night before she goes to bed.

Even though he didn't do anything wrong, he became suspicious of everything.