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。
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