Courage is the ability to face danger, difficulty, uncertainty, or pain without being overcome by fear or being deflected from a chosen course of action.

勇气是面对危险，困境，不确定因素和痛苦而毫不畏惧，或是敢想敢干的气概。

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We regret that our mills are facing difficulty in the course of printing the design required, and should ask for your consent to the postponement of shipment to the end of Jan.

我们很抱歉，工厂在印刷贵方要求的小样时遇到困难，请同意交期延至一月底。

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Of course, due to the difficulty of obtaining complete knowledge over those common business entities, certain extensions are normally required for any specific realization of a business solution.

当然，由于通过这些普通业务实体难以获得全面的知识，所以任何特定的业务解决方案的实现还通常需要某些扩展。

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The difficulty of this course consists in the fact that it teaches what you already know.

这门课程的难度，就在于,传授的都是你们已有的知识。

耶鲁公开课 - 公正课程节选

A writer like Mary Astell can employ Milton's revolutionary rhetoric to advance a cause to which John Milton himself would of course ; have had difficulty subscribing; a dead Milton could exercise a social power that had nothing whatsoever to do with the living Milton's own social views.

一个像玛丽·阿斯苔这样的作者可以用弥尔顿的革命性语言,来推动一项事业，一项约翰·弥尔顿本人当然很难,赞同的事业;,死去的弥尔顿竟然能够操纵与生前弥尔顿的社会观点,毫无关系的社会力量。

耶鲁公开课 - 弥尔顿课程节选

The difficulty, of course, is that live shows can appear excruciatingly dull when transferred to television or video.

WSJ: Culture City: The Arts Festival You Can Watch on Your Couch

The difficulty, of course, is industry-wide acceptance and adoption.

FORBES: The 128-Byte Data Field That Could Save Lives and Billions of Dollars

The difficulty, of course, is that the very nature of public cloud services means there are few barriers to stop employees from simply using a credit card to self-provision a useful new capability.

FORBES: The Cloud: IT Execs See Huge Opportunities, And Serious Risks