He is an expert in chemical analysis.

This cell divides to create new cells.

He is using an octant for navigation.

Spectroscopy is an important means of investigating the properties of matter.

You can use a spectrometer to examine the composition of a substance.

He strongly believes in the value of humanism.

My four treasures of the study are a fountain pen, a pencil, an eraser, and a ruler.

Related items are listed at the bottom of this article.

My daughter works as a signboard girl almost every day.

He seems to embody the word 'flawless'.