populations

常见例句

The disease can sweep through whole populations in a very short time.
这种病可以在很短的时间里在全体人口中流行开来。
How do the populations maintain this homeostasis?
种群如何能维持这种内稳定状态呢?
Periodic local catastrophes reduce populations.
周期性的局部地区的灾变降低了种群的数量。
Populations tend to grow at an exponential rate.
人口趋向于以指数比率增长。
How many populations has Singapore?
新加坡有多少人口?
Many parts of the world once had large populations.
世界上许多地区曾经人口众多。