There may be something in this, but the far more important cause is simply lack of demand.
这里面可能有些原因，但更重要的则仅是需求匮乏。
By 2030, they'll be responsible for 42 percent of growth in energy demand worldwide.
到2030年，他们将占到世界能源需求增长的42%。
Leading designers demand or request to be in control of advertising and image.
顶尖设计师们会要求或请求掌握广告和形象的控制权。
However, we need to be as flexible as possible in terms of meeting increased demand.
然而，我们必须尽可能地采取灵活方式，以应付不断增长的需求。
Because of this, people who work with computers will be in much greater demand.
鉴于此，大量需要用电脑工作的人。
When the demand of consumption increase, the economy of the country would be in expansion;
当一个国家消费需求扩大，这个国家的经济就会处于繁荣阶段；
When the demand of consumption increase, the economy of the country would be in expansion;
当一个国家消费需求扩大，这个国家的经济就会处于繁荣阶段；
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