攀岩就是，在艰难的条件下攀登。
Rock climbing is all about, well, climbing-and in very tough conditions.
管理就是在不确定且经常快速变化的条件下做出艰难的权衡。
Management is all about making difficult tradeoffs in conditions that are always uncertain and often fast-changing.
在今年艰难的市场条件下，英航和维珍两家航空公司的收益受损是毫无疑问的。
Both BA and Virgin were in no doubt that tough market conditions would hurt their profits for the current year.
在艰难的经济条件下，公司关注的是收入的增长。
In tough economic conditions, companies are concerned about revenue growth.
适应力使那些在贫困或艰难条件下长大的孩子能进入高等学府，并成为成功人士。
Resilience is what makes kids who grow up surrounded by poverty or cruelty still able to get into top universities and become successful.
网络方案自身具有不肯定性，只要在特定条件下才取某个定值，在许多状况下，估量项目活动时间是艰难的。
The network plans are inherently uncertain, and only under certain conditions before taking a fixed value, in many cases, the estimated time for project activities is difficult.
夫妻中的一方被要求和对方讲述自己生活中一段艰难经历，而观察者则被要求在消音的条件下观察聆听的一方20秒钟。
One member of the couple was asked to tell the other about a time of suffering in his or her life. Observers were asked to watch the listener for 20 seconds, with the sound turned off.
我们自己条件也不宽裕，没有很多可供奉献或分享，但父亲坚信，一切都会好的，即使在极其艰难的条件下也会如此。
We didn't have that much to share or to give, but he had faith that things would work out-even under tremendously difficult conditions.
这些代表性的工作向世人展示了数学研究所科研人员在极度艰难的条件下，坚持数学研究而取得的标志性成果。
These were the symbolic achievements of mathematical research of our institute's scientists who had been working at an extremely difficult time.
这些代表性的工作向世人展示了数学研究所科研人员在极度艰难的条件下，坚持数学研究而取得的标志性成果。
These were the symbolic achievements of mathematical research of our institute's scientists who had been working at an extremely difficult time.
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