必需品：头盔，适量的衣物，电话，护照和签证，水和点心。
What you definitely need: helmet, appropriate clothing, phone, passport (with visas), water and snacks.
就像许多具有超前思维的预见者所预言的那样，云已经成为了一种像水、电话和电那样不可缺少的现代实用工具。
Just as many forward-thinking visionaries predicted, the cloud has become a modern utility like water, phones, and electricity.
从而他可以监测照明、采暖、室温、电话和自来水使用情况。
From this he can monitor lighting, heating, temperature, phone and water usage.
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