It can be very painful, swell and become hard to move.
它可以非常痛苦，肿胀，并成为移动硬盘。
It has become hard for investors to separate fact from fiction.
现在情况已变得让投资者难以区分事实与假象。
The only change that I can see is that it has become hard as a rock.
我看到的唯一变化就是它硬的像石头。
It can become hard to distinguish between what is data and what is fantasy.
要区分数据和幻想变得十分困难。
While if stored in refrigerator, it will lose its taste and become hard in crust.
如将月饼放入冰箱，皮硬味失。
It can become hard to find the actual program logic in all that error recovery code.
在大量错误复原代码中，很难发现实际的程序逻辑。
Since my accident and the three subsequent surgeries, the intricate steps have become hard for me.
自从我的意外事件和三个后来的手术以后，复杂的步骤已经对我变得难。
Although teenagers watch a lot of television it has become hard to make programmes specifically for them.
青少年看大量的电视节目，但很难为他们特别制作节目。
Customers don't know exactly how much they have to pay, and discounts or price changes become hard to manage.
顾客无法知道他们要付的正确数目到底是多少钱，而折扣与价格的变动都变得难以管理。
NewsFeed hopes none of our readers are anchovy pizza or Caesar salad addicts, as fresh little fish may become hard to find.
新闻推送栏目希望我们没有哪位是凤尾鱼披萨或者凯撒沙拉的狂热粉丝，因为现在可能很难再找到新鲜的小凤尾鱼了。
IlllustrationWhy does the code in so many robust enterprise system solutions become hard to understand, maintain, and reuse?
插图为什么在如此多的健壮的企业系统解决方案中的代码很难理解、维护及复用？
People and events can cut in on us and throw our obedience off stride. Patterns of spiritual exercise get interrupted and become hard to resume.
我们可能被人和事阻挠，以致打乱了我们顺服的步伐，有规律的灵命操练一旦被中断，会变得很难恢复。
However, snow can become hard and flat as it becomes older or if there have been strong winds. Then the snow's surface will help to send back sound waves.
然而，当雪下过一段时候后，或者经过大风刮过时，雪会变硬变平，因此，雪表面将有助于音波传递。
Over the fifty seven short chapters, Poundstone provides a dizzy array of permutations to consider and the slight varieties become hard to separate in the final pages.
Poundstone用了57个短短的章节，给出了一大堆需要考虑的、令人眼花缭乱的排列方式，以至于最后几页中的细微变化很难区分开来。
As the design evolves to meet new needs, key objects are loaded with pattern roles until they become hard to use or hard to change and the system has to be refactored or rewritten.
为了满足新的需求，设计也在不断演化，关键对象承担着各种模式角色，直到它们变得难以使用或者难以修改，最终不得不重构或者重写系统。
When the skin suffers to the serious burns, wound, infection and diabetes unprogressive skin ulcerates etc, it become hard problem to repair and rebuild the big area skin defect.
当皮肤遭受严重烧伤、创伤、感染及糖尿病顽固性皮肤溃疡等损害时，大面积皮肤缺损的修复成为棘手的难题。
What's more, it's hard to become a professional soccer player.
更重要的是，要成为一名职业足球运动员很难。
Through hard work, he eventually managed to become a student of the first rank.
通过努力，最终他成功成为了最优秀的学生。
But that their minds are not different from our own is demonstrated by the fact that the hard-won discoveries of scientists like Kepler or Einstein become the commonplace knowledge of schoolchildren.
但是，他们的头脑与我们的头脑并没有什么不同，这一点已被一个事实所证明，即像开普勒或爱因斯坦这样的科学家们的来之不易的发现，已成为小学生们的常识。
As careers and vocations become less available during times of recession, adolescents may be especially hard hit.
在经济衰退时期，工作机会越来越少，或许青少年受到的打击会尤为严重。
Their one leadership tool is volume: if they think you aren't working as hard as they think you should, their demands become increasingly louder and harsher.
他们的一个领导工具是“工作量”：如果他们觉得你没有像他们希望的那样努力工作，他们的要求就会越来越高，越来越苛刻。
His mom studied hard to become a nurse.
他的妈妈努力学习成为一名护士。
His mom studied hard to become a nurse.
他的妈妈努力学习成为一名护士。
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