He said 'friend' as a noun ending for me.

The continental slope is a part of the seafloor topography, connecting the continental shelf and the deep sea floor.

I am planning to go to Gangwon in Korea next week.

He has no knowledge about anal sex.

He is majoring in syntax at university.

He is an expert in enzymology and conducts many researches.

You can use spectroscopy to examine the components of a substance.

The population density of this area is very high.

This scent comes from benzoin.

My college is in Tokyo.