Mr. Nagaichi is my best friend.

I have a differing opinion on that plan.

We need to reconsider this plan.

We need to reconsider that plan.

She is good at arranging fresh flowers.

He is known as an excellent diplomat.

He is working in mining.

He is engaged in the mining industry.

This country has not heard the sound of arms for a long time.

His talent greatly contributed to the success of the company.