Her eyes with a large proportion of white are very impressive.

He conveyed the schedule of the meeting in a three-line email.

This compound is an organic chemical called pentacosane.

Octacosane is a compound often used in organic chemistry.

I have visited Shanhai Pass.

Liquid oxygen is often used as rocket fuel.

He is working on his job with intense concentration.

He is an expert in electronic phototypesetting.

He is creating a newspaper using an electronic phototypesetter.

Santa Claus delivers presents to children.