I am majoring in climatology at university.

I am majoring in meteorology at university.

I attend aikido classes every week.

We flew in the sky in a hot-air balloon.

The mood of this restaurant is very calming, and you can relax.

The mood of this restaurant is very calm, and you can relax.

This area has a unique microclimate.

He was my student, but now he has become so proficient that it can be said 'the student has surpassed his teacher.'

Since he started his new job, he's been lively as if he were a fish back in water.

He absorbs new information like a sponge soaking up water.