The Chief Cabinet Secretary announced a new policy at a press conference.

He set off on a great adventure.

Trade winds have a significant impact on navigation, especially at sea.

A windstorm suddenly hit our camp.

He was carrying fruit with a carrying pole.

He is very interested in anatomy.

I live in Washington D.C.

This problem is difficult.

The blade of this knife has become dull.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.