I used an optical microscope for an experiment at school.

I mainly use public transportation facilities for commuting.

He had a throat problem, and it was found that his posterior cricoarytenoid muscle was not functioning properly.

He wrote his name using the character for 'work'.

His attack was very powerful.

Kou is always tackling everything with a high-spirited attitude.

Naohiro is my best friend.

He answered in a disconcerted manner to the sudden question.

Kira is always shining brightly.

Alternating hot-cold baths have the effect of improving blood circulation in the body.