| 词汇 | scavenger |
| 释义 | scavenger noun[ C ] uk /ˈskæv.ɪn.dʒər/ us /ˈskæv.ɪn.dʒɚ/ a bird or an animal that feeds on dead animals that it has not killed itself: 食腐动物 Most dead birds are picked up by crows or other scavengers. An urban fox is a harmless scavenger which, when it can't find other sources of food, will prey on small mammals. someone who collects things that people have thrown away or left somewhere: She earns her living as a scavenger at the city dump. Then scavengers came and dug up the metals worth selling. Vultures are scavengers. The fish die, their corpses pile up and rot, leaching vital nutrients back into the water and, through maggots and scavengers, onto the land. Homeless children subsist as scavengers in garbage dumps. Going after scavengers is far from one of the Los Angeles Police Department's top priorities. Plants & animals - general words animal kingdom anti-parasitic autotroph biota biped epiphytically esculent family fauna flora mammalian migrant natively non-mammalian non-placental rodent ruminant secondary consumer songster terrestrially scavenger | American Dictionaryscavenger noun[ C ] us/ˈskæv·ən·dʒər/ an animal, bird, or person who scavenges Examples of scavengerscavenger Probably implanted oxygen ions act as scavengers of electrons or of atomic and molecular hydrogen, promoting the formation of water molecular fragments. Free radical scavengers ameliorate the 2-cell block in mouse embryo culture. Photocatalytic oxidation of organic substrates requires an electron acceptor, light of the proper wavelength, and low concentrations of catalyst fouling agents or interfering radical scavengers. A way of reducing these administrative costs is to target the subsidy to organized scavengers groups. Our knowledge of the signalling potential of different scavenger receptor members is rudimentary. Impairment of the scavenger function of the reticuloendothelial cell system further contributes to reduced hepatic blood flow and ischaemic necrosis. We argue that, for developing countries, the environmental subsidy should be aimed at favoring scavengers' activity. Other investigators have extrapolated changes that occur in endogenous radical scavengers as a measure of radical production. When they became full, municipal or private scavengers cleaned them, usually at the owner's expense. The raven is known as acting as a scavenger, competing with and often outwitting the dogs and even the hunters. They are known free radical scavengers and metal chelators. Despite the significant contribution to waste recovery and recycling, the role of scavengers in solid waste management is still not properly acknowledged. Finally, photocatalytic oxidation of the desired species may be inhibited by the presence of catalyst fouling agents and radical scavengers. Ruminants can utilize low quality forages while swine and poultry are good grain scavengers. From the 1890s municipalities increasingly took over direct management of solid waste disposal, a task previously contracted out to private scavengers. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
| 随便看 |
|
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。