So what are the stumbling blocks?
那么，障碍是什么呢？
One of the stumbling blocks in the Doha round, for example, was "preference erosion".
举个例子，阻碍多哈会议进程的一个绊脚石就是“优惠侵蚀”。
Conflicts between the Israelis and Palestinians have been called a major stumbling block to Middle East peace.
以色列和巴勒斯坦之间的冲突被称为中东和平的主要绊脚石。
When one of you falls down, he falls for those behind him, a caution against the stumbling stone.
当你们中的一个人跌倒时，他是为后面的人跌倒，使他们小心避开绊脚的石头。
After stumbling to the end of a smoke-filled corridor, you have to choose whether to turn left or right.
在跌跌撞撞地爬到充满烟雾的走廊尽头后，你不得不选择向左拐还是向右拐。
They sprang away, stumbling over roots and among vines in the dark, no two plunging in the same direction.
他们撒腿就跑，黑暗中不时被树根和藤蔓上绊倒，朝不同的方向奔去。
Nokia's pace has just recovered from a stumbling block in early 2004, when a lifeless production line reduces its markets share below 30%.
诺基亚的步伐刚从2004年初的一次绊倒中恢复过来，当时一条毫无生气的生产线致使其市场份额下降到低于30%。
Beams from the flashlights bounced crazily among the trees, and the search party crashed through the undergrowth, stumbling over stumps and fallen logs.
手电筒的光束在树林中疯狂地跳动，搜索队在灌木丛中跌跌撞撞，在树桩和倒下的原木间磕磕绊绊。
But it was a chance stumbling upon a run-down, yet functional, laboratory in his late grandfather's home that solidified the young man's enthusiasm for chemistry.
但是一次偶然的机会，他发现已故祖父家有一个破旧但功能齐全的实验室，正是这个发现使得这位年轻人确定了他对化学的热情。
Agriculture continues to be the main stumbling block to a deal.
农业仍旧是达成协议最大的绊脚石。
Witnesses describe seeing him stumbling and looking glazed.
目击证人称看见他脚步踉跄，神情呆滞。
Stumbling about the Waltzes by Strauss. I can't even remember.
泡在香槟里，踉踉跄跄地跳着斯特劳斯的华尔兹，我都记不清了。
He knows that he could climb the stairs without stumbling once.
他知道自己能走上楼梯，绝不会绊着脚。
The stumbling block lies with their conflicting views of space and time.
绊脚石正是它们对空间和时间观念的冲突。
And that highlights a big potential stumbling-block for vertical farming.
这凸显垂直农场潜在的巨大障碍。
That's compromised when she starts stumbling down the catwalk like a drunk.
还包括她在时装表演时象喝醉了一样跌倒下去。
One of the stumbling blocks in the Doha round, for example, was “preference erosion”.
举例说明，阻碍多哈会议进程的一个绊脚石就是“优惠侵蚀”。
Mr Maliki has been saying the right things and making progress, albeit stumbling.
Maliki先生一直在说正确的事情并取得一定的进展，虽然说时有些结巴。
One of the biggest stumbling blocks to all well laid strategic plans is time and money.
对所有优良的战略计划来说最大的绊脚石就是时间和金钱。
Do not curse the deaf or put a stumbling block in front of the blind, but fear your God.
不可咒骂聋子，也不可将绊脚石放在瞎子面前，只要敬畏你的神。
For television firms stumbling out of recession, it could not have come at a better time.
电视业艰难挺过了大衰退时期，进入了绝无仅有的美好时代。
The biggest stumbling block to this is that time works in different ways in these theories.
然而，目前最大的症结在于，时间，在这两种理论中分别以不同的方式运行着。
When testing a high performance system, a frequent stumbling block is that of message injection.
在测试高性能系统时，常见的障碍是消息注入。
Every time you’re stumbling upon some aspect of your being you don’t like, something happens.
每次你偶然发现你不喜欢的方面的问题时，某些问题就产生了。
Every time you're stumbling upon some aspect of your being you don't like, something happens.
每次你偶然发现你不喜欢的方面的问题时，某些问题就产生了。
Besides, the negotiations have been going nowhere-and Mr Netanyahu has been the biggest stumbling-block.
另外，双边谈判一直未能进行下去，内塔尼亚胡先生就是最大的绊脚石。
As a professional speaker, I thank God that I can now give an entire speech without stumbling over a word.
作为一个职业演讲者，感谢上帝，如今的我可以不出现一次结巴而完成一次演讲。
Now this danger is not really so very great; for they would presumably learn to walk after some stumbling.
事实上这种危险并不那么可怕，因为在跌倒几次后他们很可能就学会了走路。
Now this danger is not really so very great; for they would presumably learn to walk after some stumbling.
事实上这种危险并不那么可怕，因为在跌倒几次后他们很可能就学会了走路。
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