However, because tcpserver doesn't attempt to understand the communication, it is very difficult to attack.
然而，因为tcpserver并不试图理解通讯，所以很难被攻击。
The Pinyin is studies the Chinese character the foundation, is also the fortress which in the language teaching difficult to attack.
汉语拼音是学习汉字的基础，也是语文教学中一个难攻的堡垒。
Co: Within the patent offices there are always budget limitations and staffing constraints that make it difficult to attack all goals at once.
CO：在专利机构中总是存在预算紧张和人员安排的问题，一下子实现所有的目标非常困难。
Stalking wildlife animal to take pictures of them is quite difficult, because in any moment your subject could run or worst attack you.
潜近野生动物进行拍摄是非常困难的，因为目标会不时地移动，或者也会狠狠地攻击到你。
Security experts said it would be difficult for investigators to prove which nation was behind the attack.
安全专家表示对调查者来说要证明哪个国家处于攻击状态是困难的。
To wit, e-mail, remote login, and superuser privileges all require a password—preferably disparate and each difficult to guess or derive using an automated attack.
电子邮件、远程登录和超级用户特权都需要密码，这些密码最好各不相同而且难以通过自动化攻击猜测或推断出来。
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。
Because it is difficult to trace hackers, exactly who isbehind any specific attack and how and where they operate remains to alarge extent a mystery, technology experts say.
技术专家说，因为黑客很难追踪，所以谁是攻击的幕后黑手很难确定，他们在哪里以及如何发动的攻击在很大程度上也都是谜。
The best way to prevent this type of attack is to enforce policies that make passwords difficult to guess.
防止这种类型攻击的最佳方法是加强策略，使口令很难被猜中。
An enemy force that is dispersed in an urban area or other close terrain, and perhaps intermixed with the noncombatant population, is highly difficult to find and attack.
一支疏散到城市或者其它封闭地形下，以及可能与非战斗人群混杂在一起的敌军，是非常难以发现和进攻的。
That has the added bonus of clearing room for the player operating at the tip of the diamond—Raheem Sterling in these cases—to attack, his deep starting position making him difficult to pick up.
另一个闪光便是，菱形的顶部，破甲短锥——斯特林在进攻时，他在较深的位置启动，牙买加人的速度加上开阔的空间，你很难拦住他。
It is difficult to discern the motive of this seemingly arbitrary attack.
这种看上去随心所欲的攻击很难看出其动机。
If the dog feels he is protecting his property, it is difficult to predict whether or not he will attack.
如果狗觉得自己是保护自己的财产，这是很难预测他是否会攻击。
The desynchronization attack is very difficult to tackle and still an open question.
去同步攻击很难对付，依然是一个悬而未决的课题。
Although the attack has caused such casualties, but it is not unprecedented, I am afraid it is difficult to the last of its kind.
虽然此次袭击事件已经造成了如此大的人员伤亡，但却既不是空前的，恐怕也很难是绝后的。
Assuming that she actually had an episode of bronchospasm, it may be difficult to differentiate between anaphylaxis and an acute asthmatic attack.
假设其真的发生了支气管痉挛，很难区分究竟是过敏还是急性哮喘发作。
It's difficult to detect blindly the image rotation Angle in blind watermarking under geometry attack.
抗几何攻击的盲检测数字水印的难点是图像旋转角度的盲检测。
He said that me and Oba had to keep the ball but we were a bit too isolated in attack and it was difficult to play.
他说我和奥巴必须拿住球，但我们在进攻中没有配合，这就让比赛变得困难。
We have to attack with the brain and pay attention not to lose balls in difficult areas.
我们必须动脑子并专注，防止不同的区域的失球。
The Scout's mobility makes it difficult to retreat from or fend off a melee attack.
侦查兵的机动性让你很难逃掉他施展的近战攻击。
But in the existing threshold signature scheme, conspiracy attack is still a problem which is difficult to solve.
但在现有的门限签名方案中，合谋攻击一直是一个难以解决的问题。
This urge is very difficult to resist, because the impulse to justify and attack is strong when you feel criticized, but it just isn't helpful, and it certainly isn't effective.
这样的冲动很难抵制，因为要理论、攻击对方的冲动在你感觉受到批评时是很强烈，但这并没有帮助，也肯定是没有效果的。
It was a very sharp attack, and because he was not used to illness, he was querulous and difficult.
这次的病是非常厉害的，而且由于他平常不大生病，所以容易动怒，很难侍候。
We had to go forward and leave Spaces which meant they could play on the counter attack. It was really difficult for.
我们必须压上，然后留下大量的空间给他们防守反击的机会，这对我们来说非常艰难。
Whereas if you can hide behind the accounting rules, so you will just give the Numbers that the accounting rules say you have to give, then it's very difficult for people to attack you.
如果你能躲在会计规则背后，那么我们只需按照规则给出数据，并且说按照规定我们不得不给，那么就很难有人攻击你了。
Whereas if you can hide behind the accounting rules, so you will just give the Numbers that the accounting rules say you have to give, then it's very difficult for people to attack you.
如果你能躲在会计规则背后，那么我们只需按照规则给出数据，并且说按照规定我们不得不给，那么就很难有人攻击你了。
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