No matter how hard we tried to digest mentally what we saw, there was no place to 'file' images of human beings holding hands and jumping from atop the World Trade Center.
不管如何努力地消化所看到的情景，我们的脑子里都没地方可以“归档”那种人类手牵手从世贸中心顶层跳下来的画面。
Hard to predict but the center of mass behaves decently.
很难预测，但质量中心稳定运动。
Let's do an example. Let's try to figure out if we have just a uniform disk how hard it is to spin it around its center.
还是看个例子吧，有一张均匀的唱盘，让它绕中心旋转有多难呢？
Mutombo, an 18-year NBA veteran, appeared to get tangled with Portland center Greg Oden and came down hard on his left leg late in the first quarter of Game 2.
在NBA打拼了18年的老球员穆托姆博，在第二节后段，很不凑巧与波特兰中锋格雷戈·奥登相撞，重重地用左腿支撑倒地。
First of all, we were concerned with the physical space in the data center and looked hard at server consolidation in the deployment of any applications.
首先，我们很关心数据中心的物理空间，竭力在一切应用程序的部署中寻求整合服务器的机会。
Nevertheless, when her children were present, she always felt the center of her heart go hard.
因此，每当孩子们出现在她面前，她总感到心头发紧。
And the recession has pressed hard on the broad center of American society.
大萧条已经重重打击到了美国社会的中坚部分。
If you close your eyes and breathe deeply, it's hard to tell if you're sitting in the new world or the old - or perhaps the perfect center.
闭上眼睛，深吸一口，你会无法分辨身处过去还是现在，又或许是一个极乐世界。
“Hard on the outside, with a soft chewy center, ” is the way many veteran computer security researchers think of such strategies.
许多资深的计算机安全研究人员认为这种战略是“外硬内软”。
For example, you can try to measure how hard it is to spin this sheet of paper about an axis that is in the center of it.
比如，试着让一张纸绕其中心轴旋转，看看有多困难。
It tends to be the weakest text alignment that you can choose, having a hard edge increases readability considerably (notice that book pages aren't center-aligned).
居中对齐是最差的文本对齐方式。排列整齐，边缘分明的文本会明显增强其可读性(注意书页从不以居中方式对齐)。
Stout explicitly preferred "total war" to the term "hard war" because hard war and similar expressions "do not penetrate the moral center of the Civil war."
在这两个术语中，Stout明确选择“全面体战”而非“硬战”，因为他认为“硬战”以及类似的表述“不能渗透到内战的道德内核中。”
“Tsunamis are rare events,” said Paul Huang, a seismologist with the tsunami warning center. “And calibrating the big events is hard.
“海啸属于小概率偶发事件，”海啸警报中心地震学家PaulHuang说，“而校定大型事件又很难。
The center of the tire features alternating rectangular lugs that provide excellent traction under hard acceleration and braking.
该中心的功能交替轮胎矩形派，提供良好的牵引下硬加速和制动。
All data is stored safely in a data center (no worries if your hard drive crashes).
所有的数据都安全的保存在数据中心(再也无需为你的硬盘崩溃担心)。
As for myself, my plan is to study English hard and to be a volunteer to teach English in the community center.
至于我本人，我的计划是努力学习英语，自愿到社区中心教英语。
The defending champion broke the third-seeded Ferrer in the first game but a catalogue of errors then undermined his hard work at the Qi Zhong Tennis Center in suburban Minhang District.
ATP网球大师赛男单决赛在上海闵行区旗忠网球中心举行，在首盘比赛中，面对赛会三号种子选手费雷尔，卫冕冠军率先破掉对手的发球局，但随后由于失误过多又遭到对方反破发。
Smog makes it hard to see the Los Angeles Civic Center on Jan. 5, 1948.
1948年1月5日，烟雾使得洛杉矶市政大厦让人难以分辨。
Upon entering the instance the player will be entering a lobby area that contains paths to the left, the right and down a pit in the center towards the hard mode.
进入此副本后，玩家会进入一个大厅，里面有通向左边、右边的道路，在中央部分有一个矿井，由此可进入困难模式。
Peering into a decorated holiday window or finding a hard-to-find toy appears to tap into the brain's reward center, triggering the release of brain chemicals that give you a shopping high.
浏览一个装饰好的节日橱窗或寻获一件市面上少见的玩具似乎会开启大脑的反映中心，刺激大脑化学物质的释放，使你达到购物的兴奋状态。
With all of his talented gifts and hard work, Bynum has perhaps the best offensive Arsenal of any NBA center in today's game.
凭借他的天赋和努力，拜纳姆或许是当今联盟中进攻武器最丰富的中锋。
Athletes have all undergone years of hard training. Some might have left home to move to a provincial training center at a very young age.
所有的运动员都经历了多年的艰苦训练，有些人在很小的时候就已经离开家去省里训练。
Athletes shave all undergone years of hard training. Some might have left home to move to a provincial training center at a very young age.
所有的运动员都经历了多年的艰苦训练，有些人在很小的时候就已经离开家去省里训练。
The project of an industrial center for teaching located on a special site, provides us a hard nut to crack but also a chance to challenge a new height.
一座选址于特殊地形的教育工业中心，给建筑师出了一道难题，同时也提供了挑战新高度的机会。
The tour tower hall in the 29th Olympic Qingdao international Marina land-based area media center with a heavy specific shape is hard to integral hoisted.
第29届奥运会青岛国际帆船中心陆域媒体中心钢结构观光塔厅，总重大，造型独特，整体吊装难度大。
Cutting processing after forming can be carburizing processing, used to make the surface hard, center of high toughness instrumentation parts and axis wear parts.
切削加工成形后可以进行渗碳处理，用来制造表面硬、中心韧性高的仪器仪表零件及轴类耐磨件。
Continuous extrusion research Center of Dalian Jiaotong University, through secular hard research, has exploited successfully the integrated set of continuous extrusion equipment of copper.
大连交通大学连续挤压工程研究中心，经过多年的努力研究，成功地开发出了铜连续挤压的成套设备。
New York people are working hard to keep the city a world center of culture, industry and commerce.
纽约人正在努力奋斗以使纽约能保持其世界文化、工业、和商务中心的地位。
New York people are working hard to keep the city a world center of culture, industry and commerce.
纽约人正在努力奋斗以使纽约能保持其世界文化、工业、和商务中心的地位。
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