He died from karoshi.

Dialogue between workers and employers is important.

He was smiling as if he was in a state of euphoria.

We started negotiations for the new contract.

We negotiated about the new contract.

He is my old master, and he has had a great influence on my life.

Recently, my mother's presbyopia has been progressing, making it difficult for her to read.

He died from overwork.

In Japan, karoshi has become a social issue.

I wrapped the sandwich in wax paper.