但我们现在还不知道地球上到底有多少水。
你应该问问你自己是否真的需要喝这些无卡路里的饮料，到底喝自来水和家庭过滤水有什么问题？
You might ask yourself whether you truly need to drink more calorie-free beverages - and what is wrong with tap or home-filtered water?
但我们现在还不知道地球上到底有多少水。
他没有告诉我们应当使用多少水来冲洗废物，抑或用等效于每人一公升矿泉水的水量来浇灌农作物到底是超出了10倍还是100倍。
He doesn't tell us how much water we should be using to flush our waste or whether the equivalent of a liter of Evian per person for our farmer's rice crop is 10 times or 100 times too much.
有一只奇巧的台盆，当盆里装满水时，脸盆会倾斜过来，把水溢出到底下的马桶里去。
There was an artful configuration of a sink that, when filled, could be tipped up so that its contents would spill into the toilet below.
然而，到底有多少这样的水来自于这些彗星，还不还不清楚，需要做进一步的研究。
"We cannot give a number," Hartogh said. "in principle, all of Earth's water may come from comets." However, it is still possible that a large-or the largest-fraction came from asteroids.
水非常深，她见不到底。
而且，这可以帮助他们研究火星上到底有没有液态的水。
It can also help them decide whether the planet had liquid water.
如果土壤是更多的粘土为基础的，这将是更容易为水浸泡通过，并得到底部的根源。
If the soil is more clay based, it will be easier for the water to soak through and get the bottoms of the roots.
大西洋里有如此多的水，以致于很难想象到底有多少。
There is so much water in the Atlantic that it is hard to imagine how much there is .
瓶装水的整个生命周期都对环境有害，到底哪里负起环境责任了？
They're trashing the environment all along the product's life cycle. Exactly how is that environmentally responsible?
靠在石棺上的科莱特正在沉思：“小草、法老、地泉、天目、阳光、水，这些一定有着某种联系，但是联系到底是什么呢？”
Leaning against the sarcophagus is thought the Klaette: "Grass, Pharaoh, to spring, the celestial eye, sun, water, which certainly has some connection, but the contact in the end what is it?"
待将白灵洗干净后，浴桶里的水已经不可视物，可想而知，笨狐狸到底沾了多少黑灰回来。
Treat to work properly after white clean, water in the bath bucket has already canned not see and is imaginable, the fatuous fox is exactly stained with how much black ash come back.
水面上较冷的水就会流动到底部，从地面吸收热量，然后再上升到水面继续融化处理。
The colder surface water then rolls to the bottom where it absorbs heat from the earth and is returned to the surface to continue the melting process.
清洗拧水的操作到底有多简单呢，您一看就知道了！
Twist in the end the operation of clean water, how easy to use them, you know at a glance!
小河里的水到底是深呢，还是浅呢？
其三是，有每颗恒星所拥有的行星当中，到底有多少颗行星是运行在适宜生命存在的轨道上(假定生命的存在需要液态水)。
After that came the number of planets per star that traveled in orbits in the right locations for life to form (assuming life requires liquid water).
这里的水不深，我触得到底。
到底浇多少水取决于土壤类型。
这里的水不深，我触得到底。
他们需要知道到底在产出多少水，也需要获取准确的、实时的海底测量数据和配置数据。
They need to know how much water is being produced and they need to access accurate, real-time subsea measurement and allocation data.
有些问题一直没有弄清楚：北京到底还有多少水？
A few questions remain unanswered when it comes to Beijing water resources. How much water is left in Beijing?
有些问题一直没有弄清楚：北京到底还有多少水？
A few questions remain unanswered when it comes to Beijing water resources. How much water is left in Beijing?
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