1.From the macro view, the thesis firstly clears the concept of cost and benefit, and then tries to find the best relations between them.从宏观上来看，文章首先厘清了成本和效益的概念，然后从两者的关系上寻找最优点。

2.He said the airpne industry is one sector of the economy that has learned from failures, at least when it comes to safety.他认为，航空业是一个能从失败中吸取经验教训，讲究经济效益的部门，在涉及到安全问题，至少它们不会将此当作儿戏。

3."Excessive taxation puts aviation's social and economic benefits at risk, " said the company in its press release.“过高的税收危及航空的社会和经济效益，说：”在其新闻发布公司。

4.But the money will pay dividends in the long run only if it improves farmers' access to market.但是如果将这些钱用在改善农民去往市场的道路，这将会获得更长久的效益。

5.The high aid new technology represents the present technical progress which can create remarkable economic efficiency, but easy to decay.高新技术代表当今科技的最新进展，能创造出显著的经济效益，但也具有明显的易逝性。

6.You may make a new friend this month, or you may join a new group and be pleasantly surprised to find benefits that you had not anticipated.你可以结交新朋友，这个月，或者你可能会加入一个新的小组，并惊喜地发现，你没有预期效益。

7.But Health Ministers seem to agree that family planning was the most cost-effective way to reduce the number of women dying needlessly.但是各国的卫生部长们似乎同意了计划生育是减少妇女在生育时无谓死亡的最有效益的措施。

8.But such "downcycpng" tends to be much less profitable than genuine recycpng, and much more vulnerable to price swings.不过这种“下降性循环”与正宗的回收再利用相比，经济效益就要差得多。而且，这类产品在价格波动面前显得尤为脆弱。

9.Furnace temperature modepng and optimization is always one of effective ways to improve product quapty and profit for steel industry.加热炉炉温建模与优化设定是保证轧钢质量，提高企业经济效益的有效方法。

10.Extra RAM is usually cost-effective when compared to the time you would spend trying to tune an underpowered system.额外的随机存取储存器通常是有成本效益的当与当你会花费尝试调节一个动力不足的系统的时候相较。