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Thirty undergraduate students who had a habit of taking a napping after lunch participated the experiment in which they were asked to do four different information processing tasks.
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30名有午睡习惯的大学生参加了实验，他们被要求执行选择反应、短期记忆、算术计算、观察共4项任务。 |
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Thirty weeks later two-millimeter-wide molar crowns emerged, complete with pulp chambers, root tips and bonelike layers of dentin and, in a first, enamel.
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30周后，冒出了两公釐宽的臼齿牙冠，具有牙髓腔、牙根的根尖、一层如骨骼般的象牙质，以及最基本的珐琅质。 |
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Thirty years I've been asking permission to piss. I can't squeeze a drop without say-so.
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“我请示充许撒尿请示了三十年，没有许可我一滴也尿不出来。” |
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Thirty years after the Vietnam War ended, the former enemies now find themselves united by trade.
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越南战争结束后的三十年，昔日的敌人如今因为贸易而走到了一起。 |
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Thirty years ago China was building prestige projects in Africa, like the railway from Zambia to Tanzania trying to spread communism across the continent.
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三十年前中国在非洲是搞形象工程，象从赞比亚到坦桑尼亚的铁路，试图在整个大陆传播共产主义。 |
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Thirty years ago scientists predicted that we would run out of the three main fossil fuels: coal, oil and gas.
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30年前科学家预言过，我们将耗尽3种主要矿物燃料：煤、石油和天然气。 |
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Thirty years ago they were the noisy, smelly alternative to the fuel crisis of the 1970s.
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三十年前，它们是针对20世纪70年代燃料危机的嘈杂而难闻的替代品。 |
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Thirty years ago this week an American President arrived in China on a trip designed to end decades of estrangement and confront centuries of suspicion.
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尼克松总统向世界表明了两个有着重大差异的国家，本着互惠互利，本着相互尊重的精神是能够站在一起的。 |
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Thirty years ago this week, an American President arrived in China on a trip designed to end decades of estrangement and confront centuries of suspicion.
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三十年前的这个星期，一位美国总统来到中国，他的访华之旅结束了长达数十年的隔阂和长达数百年的相互猜疑。 |
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Thirty years ago, a small group of mothers whose children had been seized by the military government then in power in Argentina began walking in circles in the main square in Buenos Aires.
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卅年前，由于孩子被当时执政的阿根廷军政府抓走，一小群妈妈开始在布宜诺艾利斯大广场绕圈子游行抗议。 |
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Thirty years ago, few could foresee China's move to a free-market economy.
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30年前，很少有谁能预测中国能加入自由市场经济体。 |
