Two cheetah cubs think they've found an easy meal when they catch a gemsbok calf, until they are confronted by the calf's protective mother. It's morning in the Kalahari, and this female cheetah has discovered that her cubs are growing ever more ind

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 国家地理2008年

NATO Grapples With Russian Moves in Ukraine 北约与俄罗斯角力乌克兰 LONDON U.S. Defense Secretary Chuck Hagel says Russias annexation of Crimea and involvement in eastern Ukraine are the biggest threat to European security since the end of

发表于:2019-01-14 / 阅读(59) / 评论(0) 分类 VOA标准英语2014年(六月)

It's morning in the Kalahari, and this female cheetah has discovered that her cubs are growing ever more independent. She calls for them, but theyve already gone out exploring. And theyve discovered a wounded gemsbok that may have escaped from a lion

发表于:2019-01-22 / 阅读(99) / 评论(0) 分类 自然百科2008年