这样不仅会减少收入，同样还削弱了促进技术进步的刺激因素并使得他国迎头赶上。
Not only does that reduce revenue, it also weakens the incentive to improve technology and lets those foreigners get ahead.
“这是一个独特的历史时刻：25年来首次出现的根本刺激因素 –高昂的粮食价格 –正在促进农业部门的生产，”雅克·迪乌夫说。
“This is a unique moment in history: for the first time in 25 years, a fundamental incentive - high food commodity prices - is in place for stimulating the agricultural sector,” Jacques Diouf said.
其他因素还包括“票房链效应”，明星电影对旅游业的刺激效果及对英国的“总促进效应”。
Other elements include the "box-office chain effect", the tourism boost from the star's films and the "general promotional effect" for Britain.
其他因素还包括“票房链效应”，明星电影对旅游业的刺激效果及对英国的“总促进效应”。
Other elements include the "box-office chain effect", the tourism boost from the star's films and the "general promotional effect" for Britain.
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