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Other experts say glass making first started four to five thousand years ago in ancient Mesopotamia, present day Iraq and Syria.
VOA: special.2009.09.16
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But at the end of the day, and here's why we just went with binary and not decimal years ago, when you have one implement a computer with a physical device, it's actually really easy to represent the notion of on or off.
但是最终，之前我们采用二进制,而不是十进制，主要是因为当我们用一台实体机器运行计算机时，这实际上很容易用开或者关的概念来表示。
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so for about six, oh, no, it was nine hours a day, it's a long time ago.
每天要上六个，噢，不是，是九个小时的课，这都是很久以前的事情了。
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Our broadcast today begins a few years ago on a beautiful day in Thailand.
VOA: special.2009.03.17
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But back in the day about 10 or 15 years ago,
但十年或十五年前，
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It is being called "the festival of freedom" as the city commemorates the day 20 years ago that the Wall fell.
VOA: standard.2009.11.09
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In fact, I dug up this from a few years ago it was actually pretty fortuitous like the day before one of CS50s lectures the original iPhone was cracked.
实际上，我在几年前,发现了这个，这是相当意外的,就像在一个CS50演讲前一天,我的iPhone，坏掉了。
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Four years ago on International Women's Day, the Afghan government unveiled a plan for accelerating the improvement of women's status in the country.
VOA: standard.2010.03.07
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Its founders began oil explorations in modern-day Iran more than 100 years ago.
VOA: standard.2010.06.18
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The traditional Independence Day military parade was canceled, in wake of the mutiny a month ago by borders guards in which 75 people died, mostly army officers.
VOA: standard.2009.03.26
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"We do it as a team now, where a few months ago we didn't do it along with our Afghan partners, now,every day, we are all together in the same venues and we pass information.
VOA: standard.2009.12.03
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"The sight of a mass murderer getting a hero's welcome in Tripoli is deeply upsetting, deeply distressing, above all for the 270 families who grieve every day for the loss of their loved ones 21 years ago.
VOA: standard.2009.08.21
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