名词
1.不可数名词：人口
2.可数名词：【一般用单数】（某一地区的）全体居民
a group of organisms of the same species populating a given area
the people who inhabit a territory or state
the number of inhabitants (either the total number or the number of a particular race or class) in a given place (country or city etc.)
the act of populating (causing to live in a place)
(statistics) the entire aggregation of items from which samples can be drawn
population boom n.人口爆炸
employed population 就业人口，就业人口
density of population 人口密度
fungal population 真菌群体，真菌种群
geochemical population 地球化学总体
equilibrium population 平衡群体
excess population 过剩粒子数
intermediate population 中介星族
infinite population 无限群体，无限总体
initial population 原始群体
population n. 1.[U]人口2.[C]【一般用单数】（某一地区的）全体居民
over population 个体数过剩
