2,500 gallons of water are needed to produce one pound of beef.
生产一磅牛肉需要2500加仑的水。
The questions become more complicated when actual volumes of water are considered: how much water enters and leaves by each route?
当考虑水的实际体积时，问题变得更加复杂：每条支流会有多少水流进及流出呢？
Three glasses of water are shown.
三杯水映入眼帘。
It's not so good as before. Both the air and the water are badly polluted.
不像以前那么好了。空气和水都被严重污染了。
Wind and water are constantly crashing into these plants.
风和水不断地冲击着这些植物。
Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.
在水中大多数氢原子和氧原子是稳定的，但这两个元素也有微量以较重的同位素形式存在。
In developed countries such as the United States and some countries in Europe, laws about safe water are often stricter for tap water than for bottled water.
在发达国家如美国和一些欧洲国家，关于安全用水的法律通常对自来水比对瓶装水更严格。
AbuBakr Bahaj, in charge of the Southampton research, said: The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant.
负责南安普顿研究的AbuBakr Bahaj说：潮汐流的能源前景比风能要好得多，因为水流是可预测和恒定的。
The trees reflected in the water are dancing.
水中倒映的树影婆娑起舞。
Hundreds of thousands of litres of safe water are needed.
需要几十万升安全水。
Small pouches of clean drinking water are being widely distributed.
小袋的洁净饮用水也在四处发放。
As many as four litres of water are used to make a litre of the bottled stuff.
多达4升的水被用来制造一升的瓶装饮料。
And sometimes these traditional means of "harvesting" water are no longer available.
而且，有时这些“收获”水源的传统手段还不太管用。
At Camp Leatherneck, cases of bottled water are piled high under a makeshift shelter on Jan. 13.
1月13日，海军陆战队营地，一箱箱的瓶装水堆方在一个临时遮蔽处下。
An earthquake victim said, "These clothes and bottles of water are all provided by volunteers."
一位地震的受害者说：“这些衣服和瓶装水都是志愿者提供给我们的。”
The hygiene conditions are very bad, the hand pumps for clean drinking water are not good enough.
卫生条件非常差，手动机井提取干净饮用水的办法也不够好。
Food and water are scarce, and countless Numbers of people are stranded and without heat and power.
食物和水非常匮乏，无数民众受困并且没有暖气没有电。
As most rescues occur during the first 36 hours, food and water are less important during that period.
大多数营救是发生在前36个小时，水和食物在这个期间相对就不是那么重要了。
Rising sea levels and the associated intrusion of salt water are likely to reduce the amount of arable land even further.
上升的海平面和有关的海水侵入很可能会进一步减少可耕种土地的数量。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。
Today’s demands for water are such that there is little left of the river when it eventually empties into the Mediterranean.
如今对水的需求使得尼罗河到达地中海时，几乎没有剩下多少水。
Most scientists believe the likeliest places for water are at the poles of the moon, where there are craters in permanent shadow.
大多数科学家认为，月球的两极是最有可能存在水的地方，因为那里是常年处于阴暗之中的陨石坑。
Energy and the technology to desalinate water are both expensive, and this means that desalinating water can be pretty costly.
淡化海水所需的能源和技术价格不菲，这就意味着海水淡化的代价极其昂贵。
In school, you probably learned that materials like wood, glass, and water are made of atoms that stick together to make molecules.
在学校，你可能学过像木头，玻璃以及水这样的物质是由原子聚集而成的，从而形成分子。
The systems that are built into us to find food and water are the things that were also active when he renounced the throne of England.
在他放弃英格兰王位的时候，植根于我们大脑的，支配对事物和水的需求的机制对他也同样起作用。
A sunken ship lies in trust, preserved in the airless environment of the sea and those in deep water are especially well protected.
沉船被海洋中没有空气的环境保管起来，躺在深水中的船只被保存得尤其完好。
A sunken ship lies in trust, preserved in the airless environment of the sea and those in deep water are especially well protected.
沉船被海洋中没有空气的环境保管起来，躺在深水中的船只被保存得尤其完好。
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