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1.cloak 隐藏
The hills were cloaked in thick mist.
大雾笼罩着群山。
2.pernicious 致命的
They don't really, in their ivory towers, understand how pernicious drug crime is.
他们身处象牙塔中，并不真正了解毒品犯罪的危害有多大。
adj. 确定的，必然的，特定的
pron.
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- Killing two birds with one stone is a desirable objective, but rarely an achievable one.
- 一石二鸟是一个令人向往的目标，但很难实现。
- However, Dinesh Mohan of Nehru University, in Delhi,
- 然而，德里尼赫鲁大学的Dinesh Mohan认为
- thinks he may have worked out how to do it in the case of a pair of local environmental problems.
- 他可能已经想出了解决当地两个环境问题的方法。
- One is the risk of fire in the pine forests cloaking the foothills of the Himalaya.
- 一个是隐藏在喜马拉雅山山麓的松林火灾风险。
- The other is pollution by heavy metals, particularly lead, of some of the country's water supply.
- 另一个是该国水源中的重金属污染问题，尤其是铅。
- The fire risk comes from pines' needle-like leaves. These decay only slowly once shed,
- 火灾风险来自于松树针状的叶子。一旦脱落，这些叶子腐化进度缓慢，
- and thus build up on the ground into thick, inflammable layers. Nor are they just a fire hazard.
- 因此在地面上形成了厚且易燃的树叶层。它们不仅仅是火灾隐患。
- They also slow down the replenishment of groundwater and make the soil more acidic than it otherwise would be,
- 它们还放慢了地下水补给的速度，使土壤酸性比正常情况下更强，
- discouraging the growth of grass and other non-arboreal plants.
- 阻碍了草地和其他非树生植物的生长。
- The pollution risk comes from lead derived from fuels, old water pipes and paint.
- 污染风险来自于燃料、旧水管和油气中的铅。
- Heavy-metal pollution is by no means the only water-quality problem facing India, but it is one of the most pernicious.
- 重金属污染绝不是印度面临的唯一水质量问题，但却是最致命的问题之一。
- Like many other countries, India has adopted the maximum level in drinking water for lead set by the World Health Organisation (WHO).
- 和很多其他国家一样，印度采用的是世界卫生组织（WHO）设定的饮用水铅含量上限。
- This is ten micrograms per litre. In 2014 (the most recent year for which data are available)
- 即每升10微克。在2014年（这几年唯一公开的数据）
- the country's Central Water Commission reported concentrations above this threshold at 47 of its 387 river-water-quality monitoring stations.
- 该国的中央水务委员会报告称，在其387个河流水质监测站中，有47个的浓度超过了这一阈值。
- The simultaneous solution of the two problems, proposed by Dr Mohan in a paper in ACS Omega, is simple and elegant.
- Mohan博士在《ACS Omega》的一篇论文中提到，同时解决这两个问题的方法，既简单又精妙。
- It is to use the needles to clean up the water.
- 即利用针叶净化水源。
- One way to extract heavy metals like lead from polluted water is to pass that water through charcoal filters.
- 从被污染的水中提取铅等重金属的一种方法是通过木炭过滤器。
- Charcoal, or "biochar" as it is now fashionably known in environmental circles, is a porous, amorphous material,
- 木炭，或现在环保圈中流行的称呼“生物炭”，是一种多孔无定形材料，
- which thereby folds a large surface area into a small volume. It is composed partly of elemental carbon,
- 因此这种材料可以将大的比表面积折成小体积。它一部分是由元素碳组成，
- but this is accompanied by lots of organic molecules such as fatty acids, phenols and quinones,
- 另一部分由很多有机分子，比如脂酸、酚类化合物和醌类
- and also by salts of potassium, magnesium and calcium, all left behind from its previous existence as plant matter.
- 还有钾、镁和钙的盐类组成，这些都是之前作为植物时所保留下来的。
- Many heavy-metal ions react enthusiastically with certain oxygen-containing groups of atoms that form parts of the organic molecules, and thus stick to them.
- 很多重金属和某些含氧原子群发生剧烈反应，这些原子形成了有机分子一部分，并粘附在有机分子上。
- They also, through a process called ion exchange, swap places with potassium, magnesium and calcium ions.
- 它们还通过离子交换，与钾离子、镁离子和钙离子交换位置。
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| 重点单词 | 查看全部解释 | |||
| certain | ['sə:tn] | |||
| amorphous | [ə'mɔ:fəs] | 联想记忆 | ||
| inflammable | [in'flæməbl] | 联想记忆 | ||
| pernicious | [pə'niʃəs] | 联想记忆 | ||
| elemental | [.eli'mentl] | |||
| objective | [əb'dʒektiv] | 联想记忆 | ||
| thereby | ['ðɛə'bai] | |||
| previous | ['pri:vjəs] | 联想记忆 | ||
| enthusiastically | [in.θju:zi'æstikəli] | |||
| discouraging | [dis'kʌridʒiŋ] |
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