Infection with head lice is no reflection on personal hygiene.
染上头虱并不会给个人卫生带来不好的影响。
His clothes were crawling with lice.
他的衣服上爬满了虱子。
The new approach rests on reconstructing the family tree of lice.
这种新的方法要借助对虱子系统树的重建。
So lice have been with us since the world's first clothes were made.
在世界第一件衣服出现后虱子也就和我们形影不离了。
A female monkey is seen in the background, removing lice from another monkey.
背景中可以看到一只母猴子在为另一只猴子抓虱子。
It's all about these sea lice.
全都是关于海虱的。
海虱正在杀死它们。
Fleas, lice, bedbugs, rats and mice are vermin.
跳蚤、虱子、臭虫、鼠类都是害虫。
This is also a good time to look for obvious parasites, such as lice.
这也是一个寻找明显的寄生虫的好时间，如虱子。
But this is difficult to do with lice, for which almost no fossils are known.
但是这就虱子来说就非常困难，因为几乎没有发现过它的化石。
Species of human lice thus mirror the splits in the tree of ape and human evolution.
人体上的虱子物种反映了猿和人类进化历程的分节点。
We studied 132 children without head lice who lived in a slum in north-eastern Brazil.
针对生活在巴西东北部贫民区内的132名无头虱症的儿童开展了一项研究。
The monkeys do not chase after lice in order to eat them, but for the sheer fun of it.
猴子捉虱子并非为了吃它们，纯为了好玩。
Social life is good for you, even when your friends have lice — if you're a Japanese macaque.
就算朋友长了虱子，社交活动也对你有益处——如果你是日本猕猴的话。
It says lice are old, predate the Cretaceous-Paleogene boundary, and must have been living on something.
它说明了虱子的历史非常久，在白垩纪-早第三纪过渡期之前，而且也肯定是寄生在某种生物上的。
Monkeys rest backstage after a show. A female monkey is seen in the background, removing lice from another monkey.
猴子们表演完后在后台休息。背景中可以看到一只母猴子在为另一只猴子抓虱子。
When salmon farming first started in Europe, the fish often became infested with lice, which then spread to wild fish.
当鲑鱼养殖在欧洲开始的时候，这种鱼经常伴随着虱子大量滋生，随后虱子又蔓延到野生鱼上。
Also known as plant lice, aphids are tiny soft-bodied insects that suck the nutrient-rich SAP from the stems of plants.
蚜虫是一种很小的软体昆虫，以吸取植物枝干里的营养汁液为生，也被称为植物虱子。
There is widespread resistance of lice to some insecticides, especially DDT, and expert local advice must be sought.
虱子之中的耐药现象很严重，尤其是对于DDT，所以需要寻求当地专家的意见。
Scientists also hypothesized that feathered dinosaurs had lice and determined that yawns are contagious among chimpanzees.
科学家还猜测有羽毛的恐龙会生虱子，还认定呵欠在黑猩猩中也是会传染的。
Human head lice are related genetically to lice on chimpanzees, and the two species began to diverge as humans and chimps diverged.
人类头上的虱子同黑猩猩身上的虱子有遗传学上的关联。随着人类和黑猩猩的分化，这两种虱子也开始分道扬镳。
Camps were often infested with lice and other diseases and it wasn't uncommon for loggers to wear the same clothes for months on end.
营地通常虱子成灾，疾病频发，伐木工几个月不换衣服是很平常的事情。
To decrease the number of head lice episodes per unit of time, control measures should include the treatment of all household contacts.
为了减少每个时间单位内出现头虱症患者的数量，应采取包括治疗所有家庭接触者在内的控制措施。
Children in the intervention group remained free from infestation with head lice significantly longer than children in the control group.
干预组的儿童没有被传染头虱症的时间仍然远远长于对照组的儿童。
In an impoverished community, girls and the poorest of the poor are the population groups that are most vulnerable for head lice infestation.
贫穷社区内的女孩和最穷的人是对头虱症侵袭抵抗力最弱的人群。
Despite their name, hen fleas are happy to suck blood from other birds. But they do not (as, for example, lice do) live on their hosts continually.
虽然名为鸡蚤，这种跳蚤也喜欢吸食其他禽类的血，但是它们不会长期寄生在宿主身上(比如像虱子那样)。
After treatment with ivermectin, the estimated number of annual episodes of head lice infestation was reduced from 19 to 14 in girls and from 15 to 5 in boys.
利用伊维菌素进行治疗后，据估算，一年中被传染头虱症的女孩和男孩的数量均有所下降，女孩从19名减少到14名，男孩从15名减少到5名。
Researchers said yesterday that they had developed a blow-dryer-like device that appears to get rid of lice and their eggs in a single half-hour session.
科学家们昨天宣布他们发明了一种类似吹风机的装置能够在半小时内清除虱子和虱卵。
In his view, the hosts on which lice were speciating during the Cretaceous could have been a different branch of the mammalian family tree, all of whose species are extinct.
在他看来，在白垩纪虱子物种进化时的宿主可能是哺乳动物系统树上的另一分支而这一分支上的所有物种都灭绝了。
In his view, the hosts on which lice were speciating during the Cretaceous could have been a different branch of the mammalian family tree, all of whose species are extinct.
在他看来，在白垩纪虱子物种进化时的宿主可能是哺乳动物系统树上的另一分支而这一分支上的所有物种都灭绝了。
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