It's difficult to master the usage of these grammatical forms.
要掌握这些语法形式的用法很困难。
But if that's the case, if trading is so easy, then why is it so difficult to master?
但是如果交易如此轻松，为什么如此难掌握？
This makes people more and more difficult to master the statistical forecasting methods.
这使得人们对统计预测方法的掌握也愈加困难。
The huge number elements comprising the API make it difficult to master it and use it effectively.
API的元素数量之巨也影响它被掌握和使用。
Combinative defense of offence is much used in basketball games and difficult to master and control.
进攻联防是篮球比赛中经常使用的战术，也是较难掌握和驾驭的战术。
It is difficult to master, but once you do learn it, you can attack 3 times in what would normally be 2.
这很难精通，但如果你学会了，你可以在本来只能攻击2次的时间内攻击3次。
This requires a form of abstract thinking (beyond the bits and bytes of code) that can be difficult to master.
这要求具有某种形式的抽象思维(而不再是代码的细节)，这种思维能力可能较难形成。
Always remember that weather markets are mercurial, extreme in price fluctuations, and very difficult to master.
始终记住，气候市场是变幻无常，价格变动剧烈，极难把握的市场。
Ergative sentences, as a special sentence pattern, are very difficult to master in second language acquisition.
作格句在英语中是一种特殊句式，在第二语言习得中较难掌握。
The suspension system which is mainly rely on solid strap, route complex Backpackers is difficult to master the balance.
它的背负系统主要是靠厚实的肩带，路线复杂时背包者比较难掌握平衡。
The post-processor plug-in approach is a bit more difficult to master, but more powerful than the context variable method.
后处理器插件方法有点更难于掌握，但是比上下文变量方法更强大。
Indicators related to the physical storage of data, the concept of complex, flexible and error-prone, so difficult to master.
指针涉及数据的物理存储，概念复杂，使用灵活且容易出错，所以较难掌握。
However, for beginners, the cycle structure of the three structures is the difficulty of studying the most difficult to master.
但是，对于初学者来说，循环结构的学习难度也是三大结构之最，较难掌握。
It is difficult to master the frequently-changing life and entity of all things; the operational rule of Tao is limitless, profound and obscure.
生命是变化莫测的，万物实体是极不易掌握的，道运筹的准则是无穷无尽、深奥而不明的。
The mini game is easy to control and difficult to master. Try to get higher score and upload your score, you will find that they are very fully.
挑战和迷你游戏都可获取成绩和成就，上传成绩查看排行榜也是另一番乐趣。
English phrasal verbs are widely believed to be particularly difficult to master because the choice of verb-particle combinations seems so unsystematic.
英语动词短语被广泛地认为难以掌握因为动词和小品词的组合似乎无理可循。
But as we age, the brain has to work harder to make new neural pathways, making it more difficult to master new tasks or change established behavior patterns.
但随着年龄的增长，脑子越来越不易形成新的神经通路，这使得我们学会新技能，或改变我们固有的行为模式变得更加困难了。
Believe it or not, of all the skills one needs to learn to be a consistently successful trader, learning to take profits is probably the most difficult to master.
不管你信不信，所有成为持续一致成功交易者的技术中，如何兑现利润是最难学的。
Seeing that ion exchange process for treatment of boiler feed-water is of high cost and difficult to master, composite antiscale KH- 209 is developed and prepared.
针对采用离子交换法处理锅炉用水时费用高且技术难以掌握等问题，研制开发了KH-209复合阻垢剂。
Partial network billiard bar is the most difficult to master the technology, in general are under no signal through normal channels are forced to use a technology.
偏杆是网络台球最难掌握的技术，一般都是在通过正常途径下打不到球时迫不得以才使用的一种技术。
Always remember that weather markets are mercurial, extreme in price fluctuations, and very difficult to master. Forecasts of weather beyond a few days are not reliable.
始终记住，气候市场是变幻无常，价格变动剧烈，极难把握的市场。几天之外的天气预报就不可靠。
Stealth technology is even more difficult to master because it relies on systems to hide the presence of the plane while equipping the pilot with enough information to attack an enemy.
隐形科技相比之下更难完全掌握，因其关键系统要可以在装载能获得足够信息的飞行员去攻击敌人时保证不暴露目标。
The operating system algorithm module, the theory of strong, more abstract concepts, experimental means monotonous and difficult to understand, it is difficult to master for the students.
对操作系统算法模块而言，其理论性较强，概念比较抽象，实验手段单调、难以理解，不能让学生透彻掌握知识的。
Because of the intense competition in the market of semi-conductor day by day, it is quite difficult to master and control the demands from customers, which elevates the frequency of rush orders.
由于半导体市场的竞争日益激烈，顾客的需求变得难以把握，紧急订单发生的频率越来越高。
Speed and reliability in travel search, especially around flights, is an extremely difficult area to master.
旅游搜索的速度和可靠性最难掌控，尤其是对于机票搜索。
Visitor: Oh, yes, This is the master plan... quite clear developed, however, it's still a bit difficult for me, an English, to read.would you please draw a clearer picture to me?
参观者：哦，是的是的。这平面图……虽然画得很清楚，但我是英国人，所以看了还是感到很茫然，你能帮我比划比划吗？
While the structure of English is fairly simple in comparison to many other languages, its idioms make it a more difficult language to adequately master.
跟世界上的其它语言相比，英语的结构是相当的简单的，它的习语使得英语成为难以充分的掌握的语言。
March 1 You say it is difficult to walk the path of Christ, to follow the teachings of the Buddha, to hold the light of Krishna, to be a Master.
你说走基督之路是困难的，追随佛陀的教诲是困难的，高举克里希纳之光是困难的，成为大师是困难的。
It has peen difficult for the people's learning foreign language, master and use vocabulary. The paper tells them several ways how to master foreign vocabulary.
学习词汇、掌握词汇、运用词汇，一直是困扰着外语学习者的难题。从多方面阐述了掌握外语词汇的学习方法。
It's equally difficult not to see the possibility that this suit is an attempt to discourage any actions on the part of users to master Facebook information.
不难看出，通过此次诉讼，Facebook尝试削弱用户对自己信息的掌控权。
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