WHO (World Health Organization)

World Health Organization

artificial satellite

guard

defend one's home and country

defend

personal hygiene

David

guard

bureaucrats shield one another, nowadays, it means cover for each other

guard

defend

sanitation worker

physiological health (this term is normally used as a more discrete way to refer to sex education)

Red Guards

self-defense

defend a title

defend the country

Garrison

Wesley / Wisely, a fictional protagonist of a series of science fiction adventure novels written by the Chinese novelist Ni Kuang

satellite

satellite picture

satellite images

Satellite Communications

Hygiene

Health Conditions; sanitary conditions

toilet paper

Health Department

bathroom

playing mahjong for fun and not for money