He quickly calculated the answer to the problem.

He quickly calculated the answer to the problem.

He is known as an excellent military staff.

I fully agree with his opinion.

I fully approve of his opinion.

We need to evaluate the profitability of this project.

Grandpa takes a walk in the park every day.

This product is suitable for mass production.

We will start mass producing this new product from next month.

We are planning to host a dinner party next week.