He is viewing that situation as a serious problem.

He views that situation as a problem.

A new approach is needed to solve this set of problems.

The main problem with this project is the lack of communication.

This question text is too difficult, it's hard to understand.

He is an expert in electronics.

My electronic dictionary is very convenient.

I check my electronic mail every day.

An electron volt is a unit of energy.

I heat up the lunch box in the microwave oven.