This cell can only be an effective barrier if there's no way to get past it.
这个细胞只有在无法通过时才能成为有效的屏障。
One day, an old neighbor went past it and said, "Your house is beautiful, but the grass in the yard is a bit overgrown."
有一天，一位老邻居路过，说：“你的房子真漂亮，就是院子里的草长势过盛。”
If it was like that in the past it going to be like that in the future and so on.
如果过去像这样，将来也像这样。
Some people have claimed to have played past it, but there are no verified reports.
有些人说他们玩过去了，但是未经证实。
After I ran past it, turned, and headed for home, I saw a newspaper vending machine.
我从大楼前跑过，拐弯，朝官邸跑回去，在路上我看到了一个自动售报机。
Even then a quarter don't think they are past it until they are in their 80s, the study showed.
尽管如此，这个调查显示有四分之一的人并不认为他们度过了中年期直到80岁。
When your confidence is challenged, just follow these seven steps and you will get past it.
当你的信心受到挑战时，就照着这七步走，你会觉得你正顺利渡过。
In the past it used this skill mainly for women in Western countries with relatively high incomes.
过去，它主要对相对收入高的西方国家的女性使用这一才能。
But in the past it was often because it was often difficult for voters to access accurate information.
但在过去造成这种现象的原因是选民很难了解到正确的信息。
This bulky piece acts a bit like a ratchet; the wheel requires some vibrational energy to get past it.
这个大型零件功能有点儿像防倒转的棘齿；轮子需要振动能来帮助前行。
And past it scuttle a pair of uniformed women, diligently sweeping already spotless slabs of concrete.
越过石头，两个身穿制服的女人在来回奔忙，勤勉地清扫着已然一尘不染的水泥地面。
The new pictures are the best view we will have of Pluto until a space probe called new Horizons flies past it in 2015.
在2015年“新地平线”太空探测器飞过冥王星之前，这将是我们获得的最清晰的冥王星新照片。
Obviously, in that case, your fear is deeply ingrained and your mind will probably never be able to move past it, period.
显然，那种恐惧会深深地根植于你的心中并很可能让你永远都忘不了那悲剧的一幕，事实上就是这样。
I haven't been able to stress-test it though, but in times past it really suffered under a heavy load and got quite slow.
我不得不强调的是，原来那时候它加载很多东西并且获取非常缓慢。
In the past it was inevitable that the artist had to live in rebellion, because creativity is the greatest rebellion in existence.
在过去，艺术家不可避免地要活在反叛当中，因为创造力就是当时的最大的反叛。
From some time past it has been widely accepted that babies — and other creatures — learn to do things because certain ACTS lead to rewards.
婴儿和其他动物由于某些做法有回报才学着做事情，这种观点在过去一段时间里一直为人们所广泛接受。
No carp have been found above the barrier, although biologists have detected their DNA in numerous spots past it and even within the lake itself.
虽然生物学家们在电力屏障之上没有发现鲤鱼，但是以往他们在许多地点甚至大湖本身确实发现过亚洲鲤鱼的DNA。
In the past it took the view that the institutions and rich individuals it served were all big boys who understood the principle of buyer beware.
过去，他认为它所服务的机构和财富个人都是大人物，他们了解买方应懂得的原则。
Hawaiian culture is not a relic of the past; it is a living culture undergoing a renaissance today.
夏威夷文化不是历史的遗迹；它是一种如今正在经历复兴的鲜活文化。
If people disregard the great works of the past, it is because these works no longer answer the needs of the present.
如果人们忽视了过去的伟大成就，是因为这些成就不再满足现今的需要了。
In the past, it wasn't popular with western children, but most of them have changed their minds already.
在过去，它不受西方孩子的欢迎，但他们大多数已经改变了看法。
This Depression narrative, however, is not merely a story about the past: It has started to inform our current expectations.
然而大萧条不仅仅叙述过去的故事：它已经开始影响我们当前对未来的预期。
Like other episodes in Michael Jackson's past, it seemed an attempt at spin had spun out of control.
就像杰克逊以往经历过的小插曲一样，这个迅速传播的企图似乎已经失控。
In the past, IT administrators have had a tough job of trying to match expected demand to physical resources.
过去，IT管理员的一项艰苦工作就是尝试将预期的要求与物理资源进行匹配。
When you look back at the great cars of the past, it really hits you just how sad and pathetic the state of modern automobile design really is.
当你回望过去优秀的汽车时，那简直是当头一棒，现代汽车设计的状况那真是多么令人伤感，多么令人怜惜啊。
In the past, IT assigned the risk of properly defining requirements to business stakeholders but assumed the risk of delivering software based on those requirements.
过去，IT界已经提出了，向商业相关利益方正确定义需求存在一定风险，但是还是假设交付软件的风险取决于这些需求。
Inductive reasoning has always worked very well for us, its worked in past; it should work in the future, shouldn't it?
归纳推理对于我们来说总是非常奏效，它在过去奏效，在将来也应该奏效，对吧？
Even at those firms where merging the jobs has worked reasonably well in the past, it may not do so in the future.
而即使是过去双职成效颇佳的公司，未来恐怕也不能这么顺利了。
Even at those firms where merging the jobs has worked reasonably well in the past, it may not do so in the future.
而即使是过去双职成效颇佳的公司，未来恐怕也不能这么顺利了。
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