与摄影器材、舞台灯光类似，它属于活动经济的一部分，而活动经济本身具有明显的淡旺季波动。只要旺季结束，设备闲置率就会上升。
According to research by Capital Economics, Canadian oil should remain competitively priced, even if Venezuelan production increases.
，这一点在爱思助手下载最新版本中也有详细论述
We believe this designation would both be legally unsound and set a dangerous precedent for any American company that negotiates with the government.
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