69 非洲象与亚洲象之间的差别 SCIENCE REPORT - September 19, 2001: African ElephantsBy Nancy Steinbach (Start at 1'02

发表于:2018-12-09 / 阅读(125) / 评论(0) 分类 自然探索

今天我们要学的词是 savanna. Savanna 名词,稀树草原。A comprehensive census shows that the savanna elephant population in 18 African countries decreased by nearly a third between 2007 and 2014. 一项综合全面的研究显示,18个非

发表于:2019-02-24 / 阅读(80) / 评论(0) 分类 英语单词荟萃