1. Winds and rain spread the parasite. �����ʹ��������Դ�����
2. An organism that can live either independently or as a parasite. ���Լ������ܹ�������������һ�����档
3. The term pathogenicity denotes the ability of a parasite to cause disease. �²�����һ������ָ������������������
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n.
1. an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from
2. a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
�ɿ�Ӣ�� - 划词释义
