I am majoring in Korean studies at university.

He has an absolute pitch, so his musical talent is very high.

In organic chemistry, cyclodecane is a cyclic saturated hydrocarbon consisting of ten carbon atoms.

In this chemical reaction, cyclooctadecane is the main product.

Pentadecane is produced in this chemical reaction.

In organic chemistry, a cycloalkane is a compound with a structure in which carbon atoms are linked in a ring.

His room exudes a calm atmosphere with indirect lighting.

We have maintained a good relationship for a long time.

After a cold front passes, the temperature drops sharply.

He works on an aircraft carrier.