Security is a difficult but necessary proposition for any application.
对于任何应用程序，安全是一个困难但必要的命题。
You aren't being stupid, but you aren't assuming too much either — a difficult but necessary balance.
没人说您笨，但是您也不用假想得太多——权衡起来是有点困难，但这是必需的。
It would be difficult but necessary to put myself out of the comfort zone to communicate and socialize with other people, in order to learn more.
把自己推出舒适带去和各色的人交往是一个困难的过程，但对于学习和社交是必要的。
US Secretary of State Hillary Clinton has called on Israel to make "difficult but necessary choices" if it wants a peace agreement with the Palestinians.
美国国务卿希拉里·克林顿呼吁，以色列要与达成巴勒斯坦和平协议，就必须做出某些“困难而又必要的选择”。
US Secretary of State Hillary Clinton has called on Israel to make "difficult but necessary choices" if it wants a peace a GREement with the Palestinians.
美国国务卿希拉里·克林顿呼吁，以色列要与达成巴勒斯坦和平协议，就必须做出某些“困难而又必要的选择”。
There are a number of possible improvements to Flex and AIR, but many of the constraints are necessary and would be very difficult to overcome, so wishing would be pointless.
Flex和AIR有许多可能提高之处，但是许多现有的约束是必要的而且非常难以克服的，所以单纯的愿望是没有意义的。
But a bank's prospects are so difficult to assess for small depositors that some form of supervision might be necessary anyway.
但对小额存款者来说，评估银行的前景实在太过困难，因此某种形式的监管是必须的。
But when they do happen, they tell us something very important: That we have the necessary tools to deal with a difficult situation in our lives.
但出现这种梦有非常重要的意义：我们拥有必要的手段处理我们生活中的困难。
It is a very difficult tip to follow, but a necessary one, if you want to really get out of debt.
这条建议很难做，但又很必要，如果你是真的想要摆脱债款。
Many people will find it strange and possibly difficult to accept that life is so well organized, but bear in mind that it is necessary if it is to be beneficial.
许多人将发现这很奇怪，也许很难接受自己的生活被有序的计划过，但是请记住，如果要得到好的结果这是必须的。
The national team did indeed provide necessary liquidity during a market crisis, but it also suppressed market moves, making it difficult for traders to make money.
国家队在市场危机期间确实提供了必要的流动性，但它也抑制了市场变动，让市场操盘手难以赚钱。
"I am not against spending the money, but it is necessary to be conscious of the level of the players whom we lost - it will be difficult to find others of that level," Wenger continued.
“我并不反对花钱，但有需要清醒的是我们失去的是什么水平的球员，再找回这样水平的球员将会是非常困难的”温格继续说。
I had to manually distribute raindrops deposited on the wire. It is difficult to recognize. But it is necessary to create the mood after the rain.
我还手动在电线上分布了一些雨滴，虽然几乎看不到，但是为了营造雨后的氛围，还是有必要创建的。
But the complexity of the telecommunication network leads to acquiring necessary knowledge to construct a correlation system for a special net is very difficult.
然而电信网络本身的复杂性导致获取必要的知识来为某个特定网络构建一个告警关联系统十分困难。
But if I had not been completely fired by the vision that kept me going during difficult times, I do not know if I could have kept up the relentless work that was necessary.
但如果我没被远见完全点燃让我挺过艰难时期，我不知我是否能坚持做好那些必要的持续的工作。
Expressing sympathy is a necessary but difficult skill.
表达同情是十分必要而又有难度的技能。
Considering all these differences in sentence structure, translators find switching subject-predicate into topic-comment sentences is often necessary but difficult in English-Chinese translation.
由于英汉语在句子结构上的巨大差异，英汉翻译中，句式转换通常是必要的但也是十分困难的一个环节。
The art of pleasing is a very necessary one to possess; but a very difficult one to acquire.
令人高兴的是一个非常必要的一个具有艺术，但很难被收购。
The art of pleasing is a very necessary one to possess; but a very difficult one to acquire.
令人高兴的是一个非常必要的一个具有艺术，但很难被收购。
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