She struggled hard to master her temper.
她竭力按住性子，不发脾气。
It is really hard to master a language.
要掌握一门语言谈何容易。
Statistics is a science very hard to master.
统计学是一门很难精通的科学。
I think it hard to master a foreign language.
我认为掌握一门外语是很难的。
Box Rush is our latest tricky game that is easy to adapt but hard to master.
这个游戏很容易入门，但是很难掌握，变成高手。
The teaching of practice is limited and all the skills are hard to master for the postgraduates.
实验教学受条件所限，研究生不易全面掌握各项实验技术。
Select from different landscapes and pilots. You will find Motorbike easy to play but hard to master.
选择从不同的景观和飞行员。你会发现摩托车容易发挥，但很难掌握。
Moreover, they should avoid the complex forms of nested and correlated subqueries that make current SQL hard to master.
此外，他们应该避免复杂表格嵌套和相关的SQL语句，使目前难以掌握。
Many people, especially the young, try hard to master the foreign language but neglect the study of their own mother tongue.
许多人，特别是年轻人，努力掌握外语，但却忽视了自己母语的学习。
SD: Yeah, we try to keep it to where our games are really simple, so many people can enjoy playing them, and we just make them hard to master.
是的，我们试着让我们游戏简单化，让许多玩家能在游戏中得到乐趣，而我们也能提高它的难度使之满足那些大师级玩家。
Sometimes, the same programs have different features and user interfaces on Windows and Macs, but I haven't found these differences hard to master.
有时候，同样的程序在Windows和Mac电脑上具有不同的功能和用户界面，但是我还没有发现这些不同很难掌握。
Organic chemistry is so abstract and full of a large number of knowledge that the beginners may find it hard to master, especially the stereochemistry.
尽管有机化学知识点多、抽象，初学者觉得难以掌握，尤其立体化学问题更让人头疼。
Climbing is not a sport that requires tremendous muscular strength; it demands mental toughness and the willingness to practice hard to master a set of skills.
攀登不是一项肌肉型运动，(话说攀岩运动员都挺瘦的说)它需要坚韧的意志和意愿，从而通过练习掌握一系列技巧。
In sparetime training, the application of psychology can often be affected by the training cycle, coaches feel hard to master the psychological factors of athletes.
在业余训练中对心理学的应用往往会受到训练周期的影响，教练员在把握运动员的心理因素方面所遇到的困难很多。
This paper expatiated EBM' s definition, background and profound connotation , emphasized the surgeon must work hard to master EBM, and obey EBM in an exemplary way in clinical fulfillment.
阐述了循证医学的起源、背景以及它深刻的内涵，强调外科医师若需快速成长，就必须努力掌握循证医学，并且在临床实践中模范地遵守循证医学的要求。
To master a foreign language like English requires hard work, so you can't study too hard.
掌握一门像英语这样的外语需要勤奋学习，因此你再怎么努力也不为过。
Why do we have to work so hard to learn Time Management, to master it?
我们为什么要如此努力地学习管理时间？ 是为了控制时间吗？
For me this was a hard skill to master.
对我而言，这是一个很难掌握的技巧。
This experience is hard to describe, but once you master it you’ll have discovered a powerful technique for releasing stress and improving your focus in a very short period of time!
这种感觉很难描述，但一旦你掌握了它，你就会发现一种强大的解压工具，而且在很短的时间内就可以改善你的注意力。
In practice, they are hard to comprehend and master, especially for programmers who are making a transition to object-oriented application development.
在实际中，它们很难理解和掌握，特别是对于那些正在向面向对象应用程序开发过渡的程序设计人员。
We all know studying English is hard, and it takes years, if not decades, to master it.
我们都知道学英语很难，要学几年甚至几十年才能掌握。
But if I work hard, how many years will it take to become a master?
但是如果我努力练功，多少年能成为大师呢？
This is a very hard technique to master.
这是一门很难掌握的技术。
It's a concept that's hard for most of us in our go-go-go world to master, but give it a whirl.
这个观念对于我们中大部分生活在忙乱世界中的人很难实现，但是尝试一下。
And if we learn to master hard lessons in school, it will prepare us to overcome the hard things that we shall meet in life, when our school days are over.
假如我们在学校里就学会驾驭功课上的难题，将来离开学校后，我们就可以准备好克服我们在人生道路上遇到的各种难题。
And if we learn to master hard lessons in school, it will prepare us to overcome the hard things that we shall meet in life, when our school days are over.
假如我们在学校里就学会驾驭功课上的难题，将来离开学校后，我们就可以准备好克服我们在人生道路上遇到的各种难题。
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