He suddenly vanished.

Estradiol is a type of female hormone, mainly produced in the ovaries.

The police are cornering the fugitive.

He discreetly swapped my wallet.

Liquid nitrogen is very cold, so care must be taken when handling it.

He is a world-famous geographer.

He is the founder of this company.

A spell checker is installed on my computer.

Projective geometry is a branch of mathematics that studies geometric objects such as points, lines, and planes and their relationships.

My new light vehicle is fuel-efficient and very convenient.