Ryosuke is my best friend.

He is undergoing electrotherapy for his back pain.

Music therapy is very effective in reducing stress.

I am majoring in econometrics at university.

We spread phosphate fertiliser on the field.

When I caught a cold, I tried heat therapy.

He has already finished writing the report, so we use the present perfect form.

His words reminded me of the proverb 'good advice may be uncomfortable to hear.'

His actions are against public order and upstanding morals.

No chemical flavoring is used in this ramen at all.