ecology
/i:ˈkɔlədʒɪ; i`kɑlədʒɪ/ n[U]
(scientific study of) the relation of plants and living creatures to each other and to their surroundings 生态; 生态学
Chemicals in the factory's sewage system have changed the ecology of the whole area. 这座工厂排出的化学物质改变了整个地区的生态.