学生必须携带两瓶水以防口渴。
Students must bring along two bottles of water to prevent thirst.
我们必须每月给仙人掌浇一次水。
为了能够维持生命，这个新的星球不仅要有液态水，而且它的土表还必须是固态的，就像地球这样。
To be able to support life, the new planet would need not only to have water, but it would also need to be solid.
当然，你必须把水都倒入另外一个容器。
随着全球粮食产量的提高，“我们必须保护好水和空气质量。
As the world steps up production, "We have to protect the water and air quality.
一些明显与水无联系的政策也必须改变。
Some policies apparently unconnected to water must change too.
第一，从现在开始到2020年必须使太阳能具备竞争力也就是有大批生产的水 平。
The first, from now until 2020, must make solar competitive at the mass-production level.
鱼要想往前游，它们必须往后推水。
所以水必须是温和而平静的。
首先必须把水从水槽中流掉。
价格必须进一步放开，尤其是能源价格，但也包括水和粮食价格。
Prices, especially of energy but including water and food, need to be freed further.
如果他们自己想要使用更多的水，就必须向邻居购买水权。
But if they want more water themselves, they must buy it from a neighbour.
他们还必须注意用与水无关的政策来解决水问题。
They must also look to non-water policies to solve water problems.
不过，报告强调说，喝大量的水仍然是保持身体健康所必须的。
However, the report highlights that drinking plenty of water is still essential to good health.
如果你想体验一下“静止的”水，有时候你必须捣捣乱。
Sometimes you have to rock the boat, if you want to experience “still” waters.
如果你想体验一下“静止的”水，有时候你必须捣捣乱。
Sometimes you have to rock the boat, if you want to experience "still" waters.
需要时我们每天生存必须的东西——食物，水，住所。
Needs are those things that provide for our daily existence - food, water, shelter.
你必须把水加热到沸腾为止。
在使用这种水之前，必须先过滤，以除去污物。
因此在压缩空气进入任何设备之前必须排除液体水。
So in compressed air into any equipment must be ruled out before liquid water.
我们必须在我们可以得到水的地方扎营。
当然，你必须把水都倒入另外一个容器。
绿地、干净的水以及新鲜的空气必须到达一个适当的比例。
It must have a proper proportion of green land, clean water and fresh air.
官员说必须做很多工作来处理农业方面水短缺问题。
Officials say more must be done to deal with water shortages in agriculture.
这瓶子装满了水。你必须倒空它。
稍后你必须喝一些水。
稍后你必须喝一些水。
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