These ideas are easy enough to understand, but more difficult to practice. But it just takes practice.
这些经典文章通俗易懂，可实践起来更加不易。
A good flight shooting hand Tour, a clear picture of the game flowing, but more difficult to give it a try.
不错的一款飞行射击手游，游戏画面清晰流畅，只是难度比较大可以尝试一下。
A more flexible (but more difficult to implement) mechanism is to dynamically discover appropriate data sources.
较灵活(但是更难于实现)的机制是动态发现适当的数据源。
Those also make the crystallization of PET easier in the low temperature range, but more difficult in the high temperature range.
阻燃剂的加入使PET的冷结晶容易进行，而从熔融态降温时的结晶过程变难。
Unschooling is easier for parents because they need not plan lessons or grade tests but more difficult in that learning is ever-present and collaborative.
非学校教育方式对于家长而言比较容易实施，因为家长不必制定课程计划，也不用搞什么升学考试。对家长而言，难的是如何保持学习的新鲜感并得到孩子的配合。
The literature defrost the best time for control and maximum average heat defrosting control and so on, theoretically innovative, but more difficult to achieve.
有关文献提出的最佳除霜时间控制及最大平均供热量控制除霜等方法，从理论上讲很有新意，但实现起来比较困难。
The literature the best defrost time control and the largest average defrost control for heat and so on, theoretically innovative, but more difficult to achieve.
有关文献提出的最佳除霜时间控制及最大平均供热量控制除霜等方法，从理论上讲很有新意，但实现起来比较困难。
The robots were required to drive a vehicle, climb up steps and do mechanical work. Such activities are easy for humans to perform, but more difficult for machines.
这些机器人被要求驾驶车辆、攀爬楼梯以及从事机械工作。这类活动让人类来做很简单，但是对机器人来说要难得多。
Gene targeting technology has been widely applied to mouse es cell, but more difficult to livestock species because es cell of livestock species could not differentiate into germ cell line.
基因打靶技术在小鼠es细胞上被广泛应用，但由于大家畜很难制备向生殖系分化的ES细胞系，所以基因打靶的应用变得非常困难。
But after years of undeniable adulation among Spaniards for putting down an attempted coup in 1981, he's recently faced more difficult times.
由于他在1981年镇压了一场未遂政变，多年以来他受到了西班牙人不可否认的追捧，但在此之后，他最近又面临着更困难的时期。
If the player are just beginners, Forpheus will play in a slow and easy way, but if the players are better ones, the robot will play in a faster and more difficult way.
如果玩家是初学者，Forpheus将会以一种缓慢而简单的方式来玩，但是如果玩家较有经验，机器人将会以一种更快且更困难的方式来玩。
We might use the word "negative" to describe more difficult emotions, but it doesn't mean those emotions are bad or we shouldn't have them.
我们可能会用“消极”这个词来描述更麻烦的情绪，但这并不意味着这些情绪是不好的，或者我们不应该有这些情绪。
But they did find that doing math while slumped over was more difficult, Science Daily reported.
但据《科学日报》报道，他们确实发现，萎靡时做数学更难。
This one may be a bit more difficult to pull off, but it can go a long way to achieving results.
这一点可能更难实现，但要达到效果需要很长一段时间。
But as the work became more difficult, the students with a growth mind-set showed greater persistence.
但随着作业难度的加大，具有成长型思维模式的学生表现出了更强的毅力。
As a doctor who graduated from Peking University, he could make lots of money and only do half the work he is doing now, but he chose to do more difficult and important work when he graduated.
作为一名毕业于北京大学的博士，他可以赚很多钱，只做他现在所做工作的一半，但他毕业时选择了从事更困难更重要的工作。
Keeping is harder than winning.; To start a business is difficult, but to keep it going is more difficult.
创业难守业更难。
Increasing the supply of doctors, for example, would increase access to care but could make it more difficult to rein in costs.
例如，增加医生的供应，增加了保健的机会，但是这将使成本控制更加困难。
But fundraising was more difficult in the United States.
但筹款活动在美国更加困难。
Finding and retaining good staff is extremely difficult, but it's even more difficult when employees are working under unfair conditions.
找到好员工并留住好员工是件非常困难的事情，但是员工在不公平的环境下工作则是难上加难。
The bigger the circle of semantic interoperability is, the more reusable the result will be in the long run, but also more difficult to coordinate and reach consensus.
语义互操作性的范围越大，其成果的长远可重用性会越高，但是也更加难以协调和达成一致。
It may be expensive and technologically more difficult. But it increases these customers’ bargaining power.
这或许成本更高，技术上困难更多，但这将增加这些工厂与俄罗斯讨价还价的能力。
Developing an application using SOA gives the application more deployment options, but also makes development more difficult. This is because SOA splits the application into two distinct parts.
使用SOA开发应用程序可提供更多的应用程序部署选项，但也使得开发工作变得越发困难。
You can also invoke such services with a bookmarklet, but it's a good deal more difficult.
也可以使用bookmarklet调用这类服务，但却较为困难。
But the findings in Ghana were more difficult to explain, because deaths from causes other than malaria fell more sharply.
但是在加纳的发现更难以解释，因为除疟疾之外由其他原因导致的死亡降低的更为显著。
Some are great, some are a bit more difficult, but regardless every site online requires some form of hosting.
一些很棒，一些就比较困难，但不管怎样，每一个在线的网站都要求一定形式的托管。
Some are great, some are a bit more difficult, but regardless every site online requires some form of hosting.
一些很棒，一些就比较困难，但不管怎样，每一个在线的网站都要求一定形式的托管。
应用推荐