The cost of that lesson is now being borne by the developed world's taxpayers.
而这堂课的学费，也正由发达国家的纳税人承担。
Controlling traffic is a complex and high cost problem in many developed countries.
交通控制在许多发达国家都是一项复杂和成本高昂的难题。
A model was developed in this study to estimate overall highway construction cost.
本研究建立了高速公路建设全部费用估计评估模型。
Even in the developed countries, they are not popular because of high cost.
即使在技术成熟的发达国家，因为高昂的价格而不易普及应用。
A new anti-agglomeration method with low cost was developed.
开发了一种新的低成本防团聚方法——泡沫悬浮法。
At the same time it can control operation cost effectively, developed a new marketing channel.
同时又能有效的控制运营成本，开辟了一个新的销售渠道。
At the same time it can control operation cost effectively, developed a new marketing channel.
同时又能有效的控制运营成本，开辟了一个新的销售渠道。
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