He always has an optimistic attitude.

He has a pessimistic way of thinking.

We need to find a fundamental solution to this problem.

He should change his self-righteous attitude.

He always has a belligerent attitude.

This has become a national issue.

This is our official website.

This restaurant is very romantic, perfect for a date.

He accurately set up the wooden target holder.

In this research, quantitative data analysis plays an important role.