He is an expert in computer science.

This computer is using the latest technology.

I analyze data using a spreadsheet software.

She described the pain of a broken heart as tears.

He emphasized his belief by saying, 'I believe in order to understand.'

I don't know a thing about him.

An electrooculogram is a test method to record the movement of the eyeball.

I examined muscle activity using an electromyogram.

One part is important.

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.