说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
Home->News->Sci_Tech->
Two hummingbirds' tit-for-tat food fight
2013-07-16 

(Source: huanqiu.com)

(Source: huanqiu.com)

(Source: huanqiu.com)

(Source: huanqiu.com)

(Source: huanqiu.com)

(Source: huanqiu.com)
Most Popular...
Previous：Huge eco-friendly tree-house in England
Next：Rescue work underway after landslide in SW China