袋鼠身上有各种各样的寄生虫。
全球变暖将会意味着热带寄生虫病的传播吗？
Will global warming mean the spread of tropical parasitic diseases?
这些症状也许是由病毒感染引起的，而与寄生虫无关。
These symptoms may be referable to virus infection rather than parasites.
寄生虫通常比它们的宿主小。
那懒汉是家里的寄生虫。
自然选择偏爱那些最容易找到寄主并以之为食的寄生虫。
Natural selection favors the parasites that are best able to find and feed on hosts.
在脊椎动物中，免疫系统提供了对体内寄生虫的多重防御。
In vertebrates, the immune system provides a multiple defense against internal parasites.
有时，在宿主-寄生虫关系中观察自然选择的影响实际上是可能的。
At times, it is actually possible to watch the effects of natural selection in host-parasite relationships.
事实上，骚痒和抓挠帮助动物去掉寄生虫、植物体或其它不想要的垃圾。
In nature, itching and scratching help animals get rid of parasites, plant material, or other unwanted baggage.
寄生虫的一个典例是绦虫，它生活在更大的动物的肠道内，从宿主那里吸收营养。
An example of a parasite is a tapeworm that lives inside the intestines of a larger animal and absorbs nutrients from its host.
动物有寄生虫或携带各种各样的病毒。一旦传染给人类，这将会是非常麻烦的事。
Animals have parasites or carry a variety of viruses. Once transmitted to humans, it would be a very troublesome thing.
在这个话题中，最干净、最高度进化的生物可能是体内寄生虫，以及蜜蜂、黄蜂和蚂蚁幼虫。
It's possible that the cleanest and most highly evolved creatures where this topic is concerned are internal parasites, along with bee, wasp and ant larvae.
那些更容易感染疾病和寄生虫的男性将不得不使用他们的类胡萝卜素来增强他们的免疫系统。
Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems.
在1950年，粘液瘤病毒，一种影响兔子的寄生虫，被故意引入澳大利亚来控制兔子的数量。
In 1950, myxoma virus, a parasite that affects rabbits, was deliberately introduced into Australia to control the rabbit population.
迎客主人一把抓过账单，对出租司机大骂不止，称他是一文不值的寄生虫，并说他企图向游客多收费，真是丢尽了他们国家的颜面。
The host grabbed the bills and initiated a verbal assault upon the cabby, calling him a worthless parasite and a disgrace to their country for trying to overcharge visitors.
实验室测试表明，这些千足虫体内的分泌物富含两种化学物质，这两种物质是有效的驱蚊剂，而蚊子携带的寄生虫会削弱卷尾猴的能力。
Laboratory tests show that secretions from the bodies of these millipedes are rich in two chemicals that are potent mosquito repellents, and mosquitoes carry parasites that debilitate capuchins.
他们只不过是一帮靠别人生活的寄生虫！
这条狗体内有寄生虫。
这是一个寄生虫疾病分布和预防的图集，其中包括了蛔虫、钩虫和鞭虫。
It's an atlas of the distribution and prevalence of helminth diseases, including roundworm, hookworm, and whipworm.
我们依赖于我们的煎锅就像绵羊依赖它们体内的寄生虫一样，如果你只吃生食，你就会饿死。
We are as dependent on our frying pans as sheep are on their internal fellow travellers, for if you eat nothing but raw food you will starve to death.
CIBC还在完善培育寄生虫的技术，这些寄生虫以“disapene scale”昆虫为食。
CIBC is also perfecting the technique for breeding parasites that prey on "disapene scale" insects.
它们将一种叫作克氏锥虫的寄生虫排到其粪便中。
They pass a parasite called trypanosoma cruzi in their faeces.
南美小国圭亚那境内有一种名为班氏线虫的寄生虫。
In the tiny South American nation of Guyana lives a problematic parasite called Wuchereria bancrofti.
两种寄生虫为十二指肠钩虫和美洲轮虫引起钩虫病。
Two parasites Ancylostoma duodenale and Necator americanus cause hookworm disease.
工党议员谴责她为“皇家寄生虫”和“粗俗的女子”。
Labour MPs denounced her as "a royal parasite" and a "floosie".
神经系统囊虫病是一种由猪肉绦虫引起的颅内寄生虫感染。
Neurocysticercosis is an intracranial parasitic infection caused by the pork tapeworm, taenia solium.
它可用于防治勾虫、蛔虫、蛲虫、鞭虫、粪类圆线虫等肠道寄生虫病。
Iit can be used to against hook worms, roundworm, pinworm, whipworm, Strongyloides stercoralis and other intestinal parasites.
在南美洲小国圭亚那，生活着一种寄生虫，叫做乌拉里亚·班克罗夫特蒂。
In the tiny South American nation of Guyana lives a parasite called Wuchereria bancrofti.
青蒿素还是一种有前途的有效药物，可用于治疗癌症，人类寄生虫，如肺囊虫病。
Artemisinin is also a promising potent drug in the treatment of cancer, human parasites such as pneumocystosis.
寄生虫学是研究寄生虫及其对宿主的影响。
Helminthology is the study of parasitic worms and their effects on their hosts.
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