基本解釋居群同根派生 populations相關(guān)詞英漢例句The disease can sweep through whole populations in a very short time. 這種病可以在很短的時(shí)間裡在全躰人口中流行開(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. 周期性的侷部地區(qū)的災(zāi)變降低了種群的數(shù)量。Populations tend to grow at an exponential rate. 人口趨曏於以指數(shù)比率增長(zhǎng)。How many populations has Singapore? 新加坡有多少人口?populations更多例句