populations

常見(jiàn)例句

The disease can sweep through whole populations in a very short time.
這種病可以在很短的時(shí)間里在全體人口中流行開(kāi)來(lái)。
How do the populations maintain this homeostasis?
種群如何能維持這種內(nèi)穩(wěn)定狀態(tài)呢?
Periodic local catastrophes reduce populations.
周期性的局部地區(qū)的災(zāi)變降低了種群的數(shù)量。
Populations tend to grow at an exponential rate.
人口趨向于以指數(shù)比率增長(zhǎng)。
How many populations has Singapore?
新加坡有多少人口?
Many parts of the world once had large populations.
世界上許多地區(qū)曾經(jīng)人口眾多。