One in eight of the nearly 10, 000 known bird species are threatened, according to BirdLife data included in the 2008 IUCN Red List.
在2008IUCN红色名录中收录的国际鸟盟的数据显示，在近10,000种已知鸟类中有八分之一的种类受到威胁。
A large bird, which may have stood at 10 feet tall, lived during the dinosaur era 83 million years ago.
8300万年前的恐龙时代生活着一种直立高度可能达到10英尺高的大型鸟类。
Like the proverbial canary in a coal mine, the nearly 10, 000 known bird species act as "environmental barometers" whose populations can appraise the greater well-being of their habitats.
就如谚语所说煤矿里的金丝雀一样，近10,000种已知的鸟类在自然界中扮演着“晴雨表”的角色，它们的数量可以用来评价其栖息地的健康情况。
The number of bird species was highest in the shrub and plantation (15 species) and lowest in deciduous forest (10 species).
鸟类物种总数以灌丛和人工林最高，均为15种。阔叶林最低，为10种。
Have to:Seek a point 10 to drink nine bubble 87 tea six bird five lake the whole world tour by imagination to dissipate sorrows for three days two extravagant!
只好：找点十间喝九泡八七茶六鸟五湖四海神游解闷三天两头奢侈一顿！
More than 10 million poultry have been culled in the region since the outbreak of bird flu. Task forces have been set up to provide quarantine and medical services.
禽流感暴发一来，该地区已经剔除一千多万只家禽。已成立专门的小组来提供隔离和医疗服务。
For 10 minutes every day, the bird would bounce its head against the window, from its perch on the windowsill.
每天，都要站在窗台上用头撞击窗户十分钟。
For 10 minutes every day, the bird would bounce its head against the window, from its perch on the windowsill.
每天，都要站在窗台上用头撞击窗户十分钟。
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