However, facts A, B, and C are never used again; they were instrumental to the argument because they allowed one to establish D, but once D is established, A, B, and C can be safely forgotten.
然而，A,B和C再也没有被使用到；他们只是辅助性的证明，因为它们被用来建立D，然而一旦D被建立起来后，A,B,C可以被毫无顾虑地忘掉。
For example, a one-time crash, as the name implies, may occur once and never appear again.
例如一次性崩溃(one - time crash)，顾名思义，可能只出现一次，并且不会再次出现。
These are people you meet once, have a great time with or are awe-struck by, and then never see again.
这些人你见过一次，拥有美妙的时光或是他们让你肃然起敬，之后便再没有机会遇见。
And the parakeet God bless him flew out a window once never to be seen again.
而那只鹦鹉，愿上帝保佑它，有一次飞出窗外，就再也没见到影儿。
Once caught, you can never again be in the eyes to the good and the pure, what you were before.
一旦揭穿，在善良和纯洁的眼光看来，你就再也不可能是过去的你了。
Unless Toyota can get the cow out of the ditch quickly, and keep it out, what was once the most valuable automotive brand in the world will never look quite the same again.
除非丰田能尽快把牛从坑里拽出来，并确保它不再掉进去，否则曾经那个最具价值的汽车品牌只得承认今非昔比了。
Events of the past month show, once again, why you should never put too much faith in the opinions of Wall Street experts and analysts.
过去一个月的各种事件再次证明，为什么永远不应该盲从华尔街专家与分析师的观点。
An industry that had run almost unchecked because of the returns it once produced and the mystique of its billionaire managers may never again get the same latitude from investors.
投资者再也不能容忍一个由于收益颇丰而不受监控的行业，以及亿万富翁经理们的神秘作风。
Imagine if you could look at something once and remember it forever. You would never have to ask for directions again.
想象一下，如果你可以过目不忘，你就可以不必再去问路了。
The good news is that the month codes never change, so you just need to memorize them once and reuse them over and over again.
好在月份代码是不变的，只要记下它们，并不断使用就能熟记于心。
The method refreshVisuals() is called only once during the initialization of the EditPart and is never called again.
方法refreshVisuals()只在EditPart的初始化过程中调用一次并且决不再次调用。
His CAB adviser reckons he will never again earn what he used to, so is helping him cut costs he once considered essential, like Internet access and mobile phones, from his family's budget.
他在公民咨询局(CAB)的顾问推算出他的收入将不会再回到从前的水平，于是便帮助大卫从他的家庭预算中削减了诸如网费和话费等，那些曾经被认为是必要的开支。
Once again, do not ask me for his name, I will never tell, not even via PM. He was brutally honest with me and I will honor his request.
在一次申明，不要向我询问那个人的名字，我永远都不会说，即便是站内短信也不行。他对我真诚以待，我也会达成他的要求。
Once caught, you can never again be, in the eyes of the good and the pure, what you were before.
一旦被揭穿，在善良和纯朴的人们眼中，你就再也不可能是以前的你了。
"And of course once you were there you never thoughtof me again! " She continued to beam on him with agaiety that might have been a studied assumption ofindifference.
“当然，你一到了那儿就再也想不起我了！”她依旧对他微笑着，那副快乐的神情很可能是故意装作毫不在乎。
Once caught, you can never again be (in the eyes) to the good and the pure, what you were before.
一但被抓，在那些善良纯洁的人眼中，你就不可能再与原来的你一样了。
Once again it is useless to apportion blame and excuses: justice can never be done in the midst of injustice.
指责和辩解依旧无济于事，因为正义绝不可能在非正义中实现。
The jailkeeper was ignorance…Once the jailkeeper was gone, the jail would disappear and never be rebuilt again.
狱卒应是愚痴……一旦狱卒走了，监狱就会消失，而永不再出现。
Once when a child or other close relatives left the old country for America family and friends sat in mourning for someone they would never see again.
以前，当儿童或亲属离开故国前往美洲时，他们的家人和朋友坐在一起哭泣，因为再也看不见他们了。
They never saw the man nor his assistant again and once again there were monkeys everywhere.
他们从来没有见过的人，也没有再和他的助手再次有猴子无处不在。
Voters will scarcely notice a depression that never happened. But even as they lose their houses and their jobs, they will see Wall Street once again making millions.
选民们不会意识到一个永远不可能发生的经济衰退，尽管目前失去了房屋和工作，但他们还将看到华尔街的重新繁荣。
A notorious Hollywood bachelor, George once vowed he would never get married again and never have children.
作为好莱坞最出名的单身汉，乔治·克鲁尼曾发誓自己永远不会再结婚，也永远不会生小孩。
Once caught, you can never again be in the eyes to the good and the pure, what you were before.
一但被抓，在那些善良纯洁的人眼中，你就不可能再与原来的你一样了。
It proves once again that the work led by the FIA in terms of safety is absolutely vital and it is clear that one should never get complacent about this element of the sport.
它再次证明了FIA在运动安全性上的工作是极其重要的，它也清楚表明大家不能在这件事情上自满。
A peculiar thing about this secret is that those who once acquire it and use it, find themselves literally swept on to success, with but little effort, and they never again submit to failure!
这个秘诀的特殊之处是，一旦展现在已得知它、使用它的人身上，他们旋即一一致富。
His music was once performed on prime time TV, but the general audience did not appreciate it, and he never had that opportunity again.
天才的音乐在电视上的黄金时段曾经播放过，但普通听众并不欣赏，所以他再也没有机会在电视上露面。
His music was once performed on prime time TV, but the general audience did not appreciate it, and he never had that opportunity again.
天才的音乐在电视上的黄金时段曾经播放过，但普通听众并不欣赏，所以他再也没有机会在电视上露面。
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