英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

tumour    
n. 瘤,肿块



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • U. S. Resumes Protections For Wild Birds Against Killings By . . .
    More than 1,000 North American bird species are covered by the treaty — from fast-flying peregrine falcons to tiny songbirds and more than 20 owl species Non-native species and some game birds
  • Bird Pollinators | U. S. Fish Wildlife Service
    Some plants are specialized for pollination by opportunistic birds, while others have coevolved with specific bird species, or specialist birds Some bird species have unique traits that make them effective pollinators, such as long, curved bills that reach deep into flowers and the ability to hover in mid-air By aiding in pollination, birds
  • Did humans cause the Quaternary megafauna extinction?
    Between 52,000 and 9,000 BCE, more than 178 species of the world’s largest mammals were killed off These were mammals heavier than 44 kilograms, ranging from mammals the size of sheep to mammoths There is strong evidence to suggest that these were largely driven by humans — we look at this in more detail later
  • Exotic Species Updates to Life Lists, Targets, Top 100, and More
    Exotic species categories and icons now appear on eBird Life Lists, Targets, and the eBird Mobile app, and Escapee birds are counted separately in outputs These updates align your personal lists with eBird's improved Exotic species policies and make it easier than ever to report and track the establishment of human-introduced species
  • Birds | FWC - Florida Fish and Wildlife Conservation Commission
    All native bird species are protected under the federal Migratory Bird Treaty Act (MBTA), regardless of whether they migrate No intentional take of these birds, their eggs, nests, or young is permitted without proper authorization Habitat loss and habitat degradation continue to be the major threats to bird species in Florida Resources:
  • Cats and Birds | American Bird Conservancy
    Cats and Birds: A Bad Combination Outdoor domestic cats are a recognized threat to global biodiversity Cats have contributed to the extinction of 63 species of birds, mammals, and reptiles in the wild and continue to adversely impact a wide variety of other species, including those at risk of extinction, such as Piping Plover
  • Nonstop Flight: How The Frigatebird Can Soar For Weeks . . . - NPR
    "And after 2,000, after 3,000, after 4,000 meters — OK, at this altitude they are in freezing conditions, especially surprising for a tropical bird " Four thousand meters is more than 12,000





中文字典-英文字典  2005-2009