He advanced ahead as our vanguard.

His design is refined and beautiful.

His style is becoming more refined year by year.

There are too many choices, I'm confused about which one to choose.

He is my brother-in-arms, and we have overcome many difficulties together.

The cargo ship has arrived at the port.

There is a precedent for this issue.

The study of chromosomes is an important part of cytology.

They occupied the city.

He loves diving and goes to the sea every weekend.