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A predator model with refuge and toxicity is studied. By constructing a suitable Dulac function, it is shown that there is no limit cycle in the first quadrant, thus the globally stability of the equilibrium is proved. Further more, the paper analyzes the influence of refuge, toxicity and harvesting. It is amazing that ① if the death rate of predator is big or the harvesting effort is big, the existence of the predator is unrelated with refuge; if the death rate of predator and the harvesting effort are small, and the refuge is small enough, the population of both species is increased as the increase of refuge;② if d2=0, the increase of d1 has no influence on the prey population, while the population of predator is decreased.

研究一类有避难所、毒素作用和外界捕获影响的捕食系统，通过构造恰当的Dulac函数，证明系统在第一象限没有极限环，从而证明了平衡点的全局稳定性；分析了避难所、毒素、捕获作用对该系统最终种群数量的影响，发现：①当捕食者的死亡率大或其被捕获得多时，两种群的绝灭与避难所的存在无关；当捕食者的死亡率小、被捕获得多且避难所足够小时，随着食饵避难所的增加，捕食者种群数量也随之增加；②当毒素d2=0时，毒素d1的增加对食饵种群最终数量没有影响，而使捕食者种群数量下降。

James Kellaris, a marketing professor at the University of Cincinnati College of Business Administration, has done research on earworms and brain itch, and he's found that as many as 99 percent of us have fallen prey to them at one time or another. Kellaris says women, musicians and people who are neurotic, tired or stressed are most prone to earworm attacks. With musicians, it makes sense because they're listening to music continuously, but Kellaris isn't sure why women are more susceptible to earworms.

辛辛那提大学公商管理学院市场营销教授James Kellaris对耳虫和大脑渴求进行过研究，他发现我们中有99%的人都遇到这种问题，他说，妇女，音乐家和那些神经过敏的、疲惫的或者是压力大的人最有可能患此类疾病，就拿音乐家来说，这是有一定道理的，因为他们经常听音乐，但是Kellaris不清楚为什么妇女也属于这一类。

Now, as time went on, the city of Epidamnus became great and populous; but falling a prey to factions arising, it is said, from a war with her neighbours the barbarians, she became much enfeebled, and lost a considerable amount of her power.

随着岁月的流逝， Epidamnus 城变得很大，人口稠密；但是由于利益集团的崛起，陷入纷争，据说，自从和外族邻居的战争以来，就变得非常衰落了，元气大伤。

Any of various large birds of prey of the New World family Cathartidae or of the Old World family Accipitridae, characteristically having dark plumage and a featherless head and neck and generally feeding on carrion.

兀鹫西半球大陆新域鹫科或东半球大陆鹫鹰科大型捕食猛禽的一种，特征是具有黑色羽毛和无毛的头和颈，食用腐肉

Diffusion problem of a predator-prey model with Holling typeⅡfunctional capturing function is studied. Stability condition is obtained when diffusion is absent, and the effect on stability of positive equilibrium is studied when diffusion is present. In the end, the problem of existence of limit cycle is proved in the first quadrant when diffusion is absent.

针对一类具有HollingⅡ型功能捕获函数的捕食－食饵模型的扩散问题进行了研究，得到了无扩散时正平衡点的稳定条件，以及扩散存在时对正平衡点稳定性产生的影响，最后证明了无扩散时系统在第一象限存在极限环的问题。

Sensitive hairs and nerves on the back of the green grappler moth caterpillar detect the slightest touch of prey.

敏感的毛发和神经在背部的绿色grappler蛾毛虫检测有丝毫的接触的猎物。

Photo of the Day: Best of May 2008 Sensitive hairs and nerves on the back of the green grappler moth caterpillar detect the slightest touch of prey.

意译：2008年5月最佳每日一图。敏感的毛发和神经在背部的绿色grappler蛾毛虫检测有丝毫的接触的猎物。

Lifted on wings three metres across the lammergeier is one of the world's largest birds of prey.

翼幅可宽达3米的兀鹰是世界上最大的捕食鸟之一。

Zeus know Orion is favorite to hunt, so put him on a small prey - Lepus.

宙斯知道奥赖温生前最喜欢打猎，就在他身边放了一只小小的猎物--天兔座。

The results show that they fee d on a variety of prey items, and tend to eat Calanoida, Brachyura Zoea larva, H arpacticoida and Nauplius.

结果表明黄鳍刺虎鱼前期幼鱼为浮游动物食性，主要摄食镖蚤类、短尾类幼体、猛蚤类和甲壳类的六肢幼体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。