This year, only a single case of polio was reported, in January, from what we know is the world's most technically challenging area for the interruption of transmission.
据我们所知本区域是从技术角度而言阻断传播最具挑战性的区域，而一月份报告的脊灰病例是今年唯一的一例脊灰病例。
It wasn't until a few years into a search for an explanation for AIDS that a team in Paris (and a year later a team in the U.S.) isolated the virus we now know as HIV.
没过多久为了解释AIDS的一只巴黎团队(随后一年后一只美国团队)分离的病毒，即我们现在知道的HIV。
CAROLYN: Probably good prices. You know we will only be in America for about a year.
凯洛琳：便宜的好了，我们大概只在美国待一年。
We knew it was unusual for not-quite-three-year-olds to know so much about astronomy, to possess such an advanced vocabulary, to spend hours at a stretch spinning the lids of Tupperware containers.
他们知道很多天文学知识，并且拥有如此高级的词汇，连续不断的几个小时旋转特百惠容器的盖子，我们知道这些对一个不足三岁的小孩来说是不正常的。
What we know for sure is that when the curtain opens on Act III, the throne is occupied by a young boy: the nine-year-old Tutankhaten (" the living image of the aten ").
等到第三幕时，密闭的帷幕终于又一次拉开了，其时国王王座上端坐着的已是一位少年：九岁的图坦卡吞(tutankhaten：意为阿吞神的形象)。
We all know that the entrance exam of high schools coming in the year of 2009 is a big challenge for us, so we must study harder and harder in order to go to a good high school.
我们都知道，2009年来的高中入学考试对我们来说是一个巨大的挑战，所以我们必须努力学习，努力去上一个好的高中。
Many are called and few are chosen, we know, but 38% is too great a second year drop-out for any university.
想进者多，入围者少，我知道。可是对任何一所大学来说，38%的第二年辍学率却是一个太大的数字。
We had not heard of half - caffs for many a long year , and did not know that they still drank coffee.
我们已经有很多年没听过半卡非这类种族了，而且也不知道他们还喝咖啡。
What we don't know is their game appreciation because they haven't played for a year.
我们不知道的只有他们的比赛情况，因为他们已经一年没有比赛了。
Even though we couldn't know what will happened tomorrow, we need to make a plan for our tomorrow, next month, or next year. Don't waste of your time because of your idleness.
虽然我们不知道明天会发生什么事，但我们应该为我们的明天，下个月，明年定制计划。更不要因为你的懒惰浪费你的时间。
Now I'm a junior Grade One student, all my classmates and I are working hard, we all know the entrance exam of high schools which will come in the year of 2009 is a big problem for us.
现在我是初中一年级的学生，所有的同学和我都很努力的学习。我们都知道在即将来临2009年的高考对于我们来说是个很大的问题。
He played well enough for the Spurs to sign him to a 3 year 7m deal and we all know the Spurs have an eye for talent.
他在马刺一度表现不错，因而拿到了3年700万的合同，大家都知道马刺一向眼光很毒的。
He played well enough for the Spurs to sign him to a 3 year 7m deal and we all know the Spurs have an eye for talent.
他在马刺一度表现不错，因而拿到了3年700万的合同，大家都知道马刺一向眼光很毒的。
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