�ɿ�Ӣ�� | ��дѵ�� | �龰�Ự | ��̨�� | ÿ��Ӣ�� | ������ | д�� | �ɿɵ��� | �ɿ���̳ | ������� | ��¼

�ʵ� | ���� | ���ʱ� | ������ | �ɿ���ҳ

extinction [ik'stiŋkʃən]

�������ʱ����Ʒ�����
[网页划词已开启]

Ӣ������

    n. ��ʧ�����𣻷�ֹ

ͬ���

�����

    1. The society was set up to preserve endangered species from extinction.
    �������Э����Ϊ�˱�����Σ���ֲ��������
    2. If Australians could cooperate to save this special species, mankind should be able to prevent the extinction of all other animals, too.
    ��������˿���ͨ���������������ر�Ķ����ô����ҲӦ���ܹ������������������������
    3. Deforestation endangers many animals, and mankinds great thirst for water and other resources leads to the extinction of many plant forms.
    ����ɭ��Σ�����ද��������ˮ��������Դ�����󼫴������������ֲ����֡�

ӢӢ����

    n.
      1. no longer in existence
      2. no longer active; extinguished
      3. the reduction of the intensity of radiation as a consequence of absorption and radiation
      4. complete annihilation
      5. a conditioning process in which the reinforcer is removed and a conditioned response becomes indepen
      6. the act of extinguishing; causing to stop burning

��������

    extinction
    ���; ��ʧ; ����; ��������;
    wildlife extinction
    Ұ���������; �������;
    oblique extinction
    ���;
    genetic extinction
    �Ŵ������Ŵ�����[����ͻ��ʹij�����͵��ʺ϶Ƚ��ͣ���ʹ�йظ���ķ�ֳ�����ͻ������Ӷ�����ij��λ����ӻ��������ʧ; �Ŵ������Ŵ�����; �Ŵ����; �Ŵ���[��]���ʺ���;
    anomalous extinction
    �쳣����;

�����ʷ

Copyright @ 2005-2013 �ɿ�Ӣ�� ��ICP��11028623��