The fact is that the energy crisis，which has suddenly been officially announced，has been with us for a long time now，and will be with us for an even longer time.事实是，虽然官方是突然宣布能源危机的存在，然而长期以来我们一直面临着能源危机，而且这种情况今后将会持续更长的时间。事实上，官方突然宣布的能源危机已经困扰我们很长一段时间了，而且这种情况今后还会持续更长一段时间。
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Whether Arab oil flows freely or not，it is clear to everyone that world industry cannot be allowed to depend on so fragile a base. The supply of oil can be shut off unexpectedly at any time, and in any case, the oil wells will all run dry in thirty years or so at the present rate of use.flows freely 自由流动【意译为：源源不断外流】at the present rate of use 以现在的使用速度Whether Arab oil flows freely or not，it is clear to everyone that world industry cannot be allowed to depend on so fragile a base. The supply of oil can be shut off unexpectedly at any time, and in any case, the oil wells will all run dry in thirty years or so at the present rate of use.不管阿拉伯的石油能否源源不断地外流，人人都清楚，再也不能让世界工业依赖于如此脆弱的能源基础。石油供应可能随时会被切断;不管怎样，以目前这种消费速度，只需30年左右，油井都会完全枯竭。1. whether …or not 引导让步状语从句2. 首句主干为：it is clear to everyone that … 其中，that 从句为真正主语，it 充当形式主语，建议你背诵该表达：人人都清楚。。。。4. 二句主干为：…and ….连接的并列句；前半句：the supply of oil can be shut off //unexpectedly //at any time；后半句：in any case,// the oil wells will run dry // in thirty years// or so// at the present rate of use.New sources of energy must be found，and this will take time，but it is not likely to result in any situation that will ever restore that sense of cheap and plentiful energy we have had in the times past.
