He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

Atsumu is immersed in compiling a dictionary.

He continued to explain earnestly.

It's difficult to handle this machine.

Atsushi is my classmate in junior high school.