emission1.N-VAR散发；释放；放射An emission of something such as gas or radiation is the release of it into theatmosphere.The emission of gases such as carbon dioxide should be stabilized at their present level...二氧化碳等气体的排放应该稳定在当前水平。
strategy1.N-VAR（尤指长期的）战略，策略，行动计划A strategy is a general plan or set of plans intended to achievesomething, especially over a long period.What strategies could you use to manage coastal development?你可以选择什么策略来发展沿海地区呢？portion1.N-COUNT部分A portion of something is a part of it.I have spent a fairly considerable portion of my life here...我生命中相当长的一段时光是在这里度过的。
significant1.ADJ-GRADED数量相当大的；显著的A significant amount or effect is large enough to be important oraffect a situation to a noticeable degree.It is the first drug that seems to have a very significant effect on this disease.这是第一种似乎对该病有显著疗效的药物。
2.ADJ-GRADED重要的；有意义的A significant fact, event, or thing is one that is important or showssomething.Time would appear to be the significant factor in this whole drama.时间似乎是整部剧中一个举足轻重的因素。
Alternative1.N-COUNT可供选择的；可供替代的If one thing is an alternative to another, the first can be found, used,or done instead of the secondNew ways to treat arthritis may provide an alternative to painkillers.关节炎的新疗法可能是止痛药之外的另一种选择。
Alternative energy gets short shrift.替代能源也不受待见。
approach1.VERB靠近；接近；走近When you approach something, you get closer to it.When I approached, they grew silent...当我走近时，他们就不说话了。
5.N-COUNT方法；态度；手段Your approach to a task, problem, or situation is the way you deal with it orthink about it.We will be exploring different approaches to gathering information.我们将探索收集信息的不同方法。
propose1.VERB提出；建议；提议If you propose something such as a plan or an idea, you suggest it for people tothink about and decide uponBritain is about to propose changes to some institutions...英国将提议对一些机构进行改革。
consume2.VERB消耗，耗费（燃料、能源或时间）To consume an amount of fuel, energy, or time means to use it up.Some of the most efficient refrigerators consume 70 percent less electricity than traditional models.一些极为节能的冰箱比传统型号耗电减少70%。
indefinitely1.ADV无限期地If a situation will continue indefinitely, it will continue for ever or until someone decides tochange it or end it.The visit has now been postponed indefinitely...访问如今被无限期推迟。
I couldn't stay there indefinitely.我不能无限期地呆在那里captureWhich pictures do you want to capture?您要捕获哪些图片？store2.VERB贮存；储备；存放When you store things, you put them in a container or other place and leave themthere until they are needed.Some types of garden furniture must be stored inside in the winter.有几类花园家具冬季必须存放在室内。
convert1.V-ERG（使）改变；更改；（使）转变If one thing is converted or converts into another, it is changed intoa different form.The signal will be converted into digital code.信号会被转变为数字代码。
pipe6.VERB用管子输送，用管道运输（液体或气体）If liquid or gas is piped somewhere, it is transferred from oneplace to another through a pipe.Most of the houses in the capital don't have piped water.首府的大部分住房没有自来水。
yield7.N-COUNT（农作物或牲畜的）产量，产出A yield is the amount of food produced on an area of land or bya number of animals....improving the yield of the crop...提高农作物产量Polluted water lessens crop yields.受污染的水源会降低农作物产量。
scaleHowever, he underestimates the scale of the problem...然而，他低估了问题的严重性。
storage1.N-UNCOUNT储藏；贮存If you refer to the storage of something, you mean that it is kept in a specialplace until it is needed.Some of the space will at first be used for storage...一部分空间将首先用于贮藏。
coordinate1.VERB协调；调和If you co-ordinate an activity, you organize the various people and things involved in it.Government officials visited the earthquake zone on Thursday morning to co-ordinate the relief effort.星期四上午，政府官员视察地震灾区，以协调救援工作。
constructive1.ADJ-GRADED（讨论、意见或方法）建设性的，积极的，有助益的A constructive discussion, comment, orapproach is useful and helpful rather than negative and unhelpful.She welcomes constructive criticism...她欢迎建设性的批评。
After their meeting, both men described the talks as frank, friendly and constructive...会面之后，两位男士均形容此次会谈坦率、友好且富有建设性。
The Prime Minister has promised that Israel will play a constructive role...首相承诺以色列将发挥积极的作用。
contend1.VERB处理；对付；解决If you have to contend with a problem or difficulty, you have to deal with it orovercome itIt is time, once again, to contend with racism...又一次到了与种族主义战斗的时刻了。
2.VERB声称；争辩；主张If you contend that something is true, you state or argue that it is true.The government contends that he is fundamentalist...政府认定他是原教旨主义者。
3.V-RECIP竞争；争夺If you contend with someone for something such as power, you compete with themto try to get it....the two main groups contending for power.两大集团争权夺利merit1.N-UNCOUNT良好品质；价值If something has merit, it has good or worthwhile qualitiesThe argument seemed to have considerable merit...这个论点似乎颇有价值。