學個詞 Learn A Word: savanna 稀樹草原

今天我們要學的詞是 savanna. Savanna 名詞，稀樹草原。A comprehensive census shows that the savanna elephant population in 18 African countries decreased by nearly a third between 2007 and 2014. 一項綜合全面的研究顯示，18個非洲國家稀樹草原非洲象的數(shù)量在2007到2014年間減少了將近三分之一。The reduction of the number of savanna elephants was largely due to illegal poaching for ivory. 非洲象數(shù)量的減少在很大程度上是由為獲取象牙非法捕獵造成的。好的，我們今天學習的詞是 savanna, savanna, savanna...