It used to be difficult to get drinking water here.
过去这里吃水很困难。
It will be more difficult in open water, especially in the ocean.
在公开水域，特别是在海洋，它将会变得相当困难。
These chemicals are difficult to remove from water .
要从水中清除这些化学物质是困难的。
The resolution of our air and water pollution problems will be difficult and costly.
要解决我们空气和水源的污染问题，困难很多而且耗资很大。
Water color is an extremely difficult medium to work with.
水彩画是一种极难掌握的绘画手法。
As there is no oxygen or water on the moon, living there would be difficult.
由于月球上没有水和氧气，所以在那里难以生存。（加了“所以”二字）
When you are in deep water, you are in a difficult position.
当你in deepwater时，表明你陷入困境了。
But many people find it difficult to drink so much water.
但是很多人觉得喝这么大量的水是一件很困难的事。
It is very difficult to live where there is no water.
在没有水的地方生活是十分困难的。
You ask me why I love you, it is difficult to describe what the water like the taste of the same.
你问我为什么爱你，这难度就像要我描述水是什么味道一样。
These chemicals are difficult to remove from water.
要从水中清除这些化学物质是困难的。
The water is a simple mesh object with a difficult material on it.
水是一个简单的面片加上了复杂的材质。
It is difficult to find a suitable tool to haul it out of the water.
要找到一个合适的工具把它拖出水面很难。
Drinking recycled purified water is difficult decision.
喝循环的净化水是一个很难的决定。
Water color is an extremely difficult medium to work with.
水彩画是一种极难掌握的绘画手腕。
However, water management is quite difficult because it is not easy to be observed directly.
然而，水管理的困难在于不容易直接地观察。
Blasting under water is difficult, submarine blasting is more difficult because of water flow.
水下爆破难度较大，在流动的海水中爆破难度更大。
It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.
穿越富水砂层一直是浅埋暗挖隧道的难点。
It is difficult to handle underground water in the process of subway construction.
在地铁建设过程中，如何处理好地下水是一大难题。
It is difficult to find some water here.
在这儿找点水是很困难的。
The cleaning of water scale for shell side cooling equipment was very difficult.
壳程水冷设备的水垢清洗很困难。
In the three-dimensional question, the treatment drawing water in the shaft is a difficult point.
三维问题中，抽水竖井的处理是一个难点。
After an emergency, finding running water can be difficult.
在紧急情况发生后，寻找流动的水源将很困难。
Second, the water is difficult.
二是饮水难。
It is difficult to pinpoint when water problems of the modern age began.
很难准确地指出，现代用水的问题是什么时候出现的。
It is difficult to pinpoint when water problems of the modern age began.
很难准确地指出，现代用水的问题是什么时候出现的。
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