He is thinking of a new plan.

His main task is to manage the progress of the meeting.

The length of this molecule is about 1 angstrom.

The size of this molecule is a few angstroms.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Neuroanatomy is an important field of study for understanding the structure and function of the brain.

There are many chambers in this castle.

I can't find my Allen key.

He is a salary thief, contributing nothing to the company.

Moura goes to bed at 9 o'clock every day.