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major
adj.主要的，大部份的 n.主修
majority
n.多数，大多数
The technology is in place for a major expansion of wind power worldwide.
高科技扩大风能使用。
gas
n.气体
gasoline
n.汽油
outgassing
n.除气作用
These periods are times when wind turbines are powered by hydrogen gas.
氮气曾用来为风力涡轮机提供动能。
cave
n.洞穴 v.挖洞
caverns-cavern
n.巨穴
Scholars have wondered about the meaning of the subjects, location, and over painting of Lascaux cave images.
学者对拉斯科岩洞画主题，地点以及画面内容感到惊奇。
techniques-technique
n.技巧；技法
Artists developed special techniques for painting the walls.
通过特殊技艺，艺术家对墙体进行绘画。
structure
n.结构，构造 v.建筑，组织
structural
adj.结构的，建筑的
The Long-Term Stability of Ecosystems Plant communities assemble themselves flexibly,
长期的植物群体稳定性可自行整合，
and their particular structure depends on the specific history of the area.
特殊结构依赖特定历史时期。
rapid
adj.迅速的，急促的n.急流
A very dehydrated person, on the other hand, cannot drink enough water to rehydrate at one session,
当人在脱水后，无法一次恢复，
because the human stomach is not sufficiently big and because a too rapid dilution of the body fluids causes death from water intoxication.
因胃容量不够大，大量补水会导致液体稀释，造成水中毒。
ocean
n.海洋
oceanic
adj.海洋的
oceanographers-oceanographer
n.海洋学者
It has been suggested that Pakicetus fed on fish in shallow water and was not yet adapted for life in the open ocean.
有学者表示，巴基斯坦古鲸在浅水生息，并不适用公海环境。
ancient
adj.远古的，年老的
To explain how ancient builders reduced the amount of time necessary to construct buildings from stone.
为了解释古代的建筑者如何减少了用石头建房所需的时间。
contained-contain
v.包含
containers-container
n.容器；集装箱
The situation is most critical in Texas, where the climate is driest, the greatest amount of water is being pumped, and the aquifer contains the least water.
德州最为严重，天气干旱，大量抽取地下水，蓄水层水量减少。
glaciers-glacier
n.冰河
glacial
adj.冰的；冰河的
glaciation
n.冰蚀
interglacial
n.两个冰河世纪之间的温暖时间段
Sediments that hold water were spread by glaciers and are still spread by rivers and streams.
水沉积通过冰川扩散，也通过河流小溪扩散。
theater
n.剧场；电影院
They produced and prerecorded the material that was shown in the theaters.
对于电影院，人们事先制作并提前录音。
conditions-condition
n.情况；环境
In some regions, the increase in desert areas is occurring largely as the result of a trend toward drier climatic conditions.
在许多地区，沙漠化问题主要是因气候干燥而起。
behavior
n.行为，举止
behavioral
adj.行为的
When one animal attacks another, it engages in the most obvious example of aggressive behavior.
当两种动物互相攻击，这种行为是明显的攻击性行为。
variety
n.变化，多样性
various
adj.各种的
vary
v.改变，变更；变化
variables-variable
n.变数，可变物
invariably
adv.不变地，一定地
Facial expressions and emotional states interact with each other through a variety of feedback mechanisms.
通过各种反馈机制，面部表情和情感状态得到互动。
nest
n.巢 v.造巢
Such nests also act as humidity regulators by allowing rain to drain into the bottom sections of the nest so that the eggs are not in direct contact with the water.
该种巢可用作湿度控制器，雨水排到巢穴下方，鸟蛋不会直接与雨水接触。
characteristics-characteristic
n.特性，特色 adj.特有的
characterized-characterize
v.赋予特色
The most striking characteristic of the plants of the alpine zone is their low growth form.
在高山地带，植物的显著特点是生长缓慢。
government
n.政府
governing-govern
v.统治；决定
In contrast to the Democrats, the Whigs favored government aid for education.
与民主党相比，辉格党人更青睐政府教育资助。
energy
n.精力；精神
energetic
adj.精力充沛的
Growth, reproduction, and daily metabolism all require an organism to expend energy.
生长，繁殖和日常新陈代谢都需要能量提升机制。
