However, I still stay in the superficial phase of study, acquiring knowledge, never think about them let alone use them.
可是自己还是停留在第一阶段——闻。自己很少去思考自己学到的这些知识，更别讲去运用这些知识了。
But such beneficial exchanges occur more by chance than design. Because most water use is not measured, let alone priced, trade rarely reflects water scarcities.
但是此类有益的交流更多的是出于偶然，而非处于策划——因为大部分水都未曾经过测量，更不用说标价，因此水匮乏无从体现。
Most manufacturers (let alone service industries) do not use much energy, the main source of emissions, and so would not suffer big costs.
大多数生产商(服务业更不用说)所用能源有限，而能源又是温室气体的主要来源，因此他们不会受到巨大损失。
One young imam, whose babies had been very tightly spaced, told us, "My wife died in childbirth because I didn't let her use contraceptives, and now I'm raising our children alone."
其中一名年轻伊玛目的几个孩子年岁相差很小，他告诉我们：“我的妻子死于难产，这都是我不让她使用避孕药具造成的，而现在只剩我独自抚养我们的孩子。”
There also seems to be a fundamental lack of understanding among many it managers as to exactly what cloud computing is, let alone how to make best use of it.
还有很多IT管理者缺乏对云计算准确概念的基本了解，更别提如何充分利用它了。
I'd like reporters and his management company let him alone and not to use him for SLS marketing.
我希望记者们和他的经纪公司不要打扰他，也不要为悲伤恋歌的市场而利用他。
There is no key technology hard to master let alone any need to make use of iridium satellite launches for improving china's mirv technique.
不存在任何难以突破的关键技术，更谈不上利用发射铱星来提高中国多弹头的分配器技术。
There is no key technology hard to master, let alone any need to make use of iridium satellite launches for improving China's MIRV technique.
不存在任何难以突破的关键技术，更谈不上利用发射铱星来提高中国多弹头的分配器技术。
The only use the knife to create supporting tools on the market so there is little real knife, let alone sell.
因而铁砧子是剪纸艺人必不可少的工具。唯一使用刻刀配套的打造工具，所以市场上极少有真正的刻刀，更别说出售。
General business and investors have very little contact with derivative financial instruments, let alone to use it in the financial activities to hedge and gain profits.
一般企业和投资者对衍生金融工具的接触和了解都甚微，更谈不上在理财活动中有效使用其进行规避风险和获得利润。
Set in the library on color gamut is very wide, more than the performance of the RGB color gamut, let alone CMYK color space, so, a large color department is to use CMYK printing ink can't present.
套色色库中的颜色色域很宽，超过了RGB的表现色域，更不用说CMYK颜色空间了，所以，有很大一部门颜色是用CMYK四色印刷油墨无法呈现的。
You have lots of opportunity to use the language with foreign staff and customers let alone with your co-workers.
你有很多机会用外语和外国同事和顾客交流，更重要的是不要忽视与同学之间的练习。
You have lots of opportunity to use the language with foreign staff and customers let alone with your co-workers.
你有很多机会用外语和外国同事和顾客交流，更重要的是不要忽视与同学之间的练习。
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