Sometimes that standard is quite difficult, if not impossible, to achieve.
有时那个标准，即使并非不可能，也是很难达到的。
But this is difficult, if not impossible.
但是这几乎是不可能达成的目的，很困难。
Replacement is difficult if not impossible.
更换很困难甚至不可能。
But reining it in will be hard, if not impossible.
然而即使这并非是不可能，但要掌控它将是困难的。
Or, if not impossible, at least impossible at the present time.
即使并非完全不可能知道，至少在目前不可能。
It is extremely hard if not impossible to get intimate with the subject.
要和被摄对象变得亲近几乎是不可能的。
Sometimes, that standard is quite difficult, if not impossible, to achieve.
有时即便有可能达到那个标准，那也是非常困难。
This is a passive approach and is difficult, if not impossible, to react to errors.
这是一种被动式方法，并且很难(如果不是不可能的话)对错误作出反应。
They can't hear, so talking to other people is very difficult, if not impossible.
因为他们听不到，所以其他人交谈，如果可能的话，也是非常困难的。
With a traditional solution, sorting might be difficult, if not impossible in some cases.
使用传统解决方案时，排序可能很难，虽然在某些情况下并非不可能。
This kind of interactivity is difficult, if not impossible, to achieve using bitmaps alone.
仅使用位图很难实现这种类型的交互性，甚至不可能实现。
Most certainly it is: and if it were not — but why need I suppose what is absolutely impossible? — but.
就算答案是肯定的，可为什么我要设想一个不可能的答案呢？
If you are not already logged in, getting access might be impossible.
如果您尚未登录到系统，那么可能根本无法进行访问。
If not for you, today's impossible.
如果没有你，今天是不可能的。
Indeed you must go, for it will be impossible for us to visit him, if you do not.
所以你必须去，因为你不去的话我们就更不可能去了。
If you are not an effective, it is impossible for you to become an outstanding manager.
如果你不是一个有效的沟通者，那你也不可能成为一个杰出的管理者。
If we give them row seating is not impossible.
如果一定要给他们排排座次，也不是不可能。
Not because I got a full mark, Just because I know nothing is impossible if you work hard.
倒不是因为满分的原因，是因为我相信只要努力没有什么是不可能的。
Never accept, if somebody told you it is impossible to do, it is just because they do not know the other way.
从来不接受别人说不行，因为这只是他不知道解决的方法。
If traffic problems are not solved soon, driving in cities will become impossible.
如果交通问题不解决，将来就不可能在城市里开车。
If traffic problems are not solved soon, driving in cities will become impossible.
如果交通问题不解决，将来就不可能在城市里开车。
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