I bought new work clothes.

The adrenal gland is an important part of our body.

This amplifier improves the sound quality.

He expressed dissatisfaction with the result.

He voiced his dissatisfaction with the result.

I went to the doctor because of sinusitis.

My sinuses are blocked, and I have a headache.

My sinuses are blocked and I have a headache.

I wore a hanbok and experienced Korean culture.

He finds it difficult to understand complex sentences.