He needed a fathom's depth to ask that question.

The ship has sunk.

He is interested in the study of constructed languages.

He is a renowned anthropologist, traveling around the world to study human cultures.

He is connected to a ventilator due to his severe condition.

The dredging work of this lake will start from next week.

He is an expert in physical anthropology.

He is an expert in physical anthropology, conducting research on human evolution.

He wandered into an island of a cannibalistic tribe.

He is a new rising star in the music industry.