My eye pain is so severe that it's hard for me to look at the computer screen.

The screen of my computer suddenly went black.

This problem is difficult to solve.

This breakup is very painful.

This ramen is very spicy.

My new computer is very fast.

I thought his behavior was really cruel.

Aldehyde is a very important compound in organic chemistry.

I think his behavior is unjust.

I think his actions are completely inhumane.