Japan and Russia have agreed to strengthen economic cooperation.

Exchanges between both countries are becoming more active.

There is a wonderful sumo arena in Ryogoku.

We hold meetings every week to strengthen teamwork.

In order to succeed in this project, it is necessary to strengthen teamwork.

We have to cooperate to make the project successful.

We agreed to the plan.

We need to cooperate to make this project successful.

We reached an agreement on that issue.

He is an expert in economics.