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By their very definition,black holes are 1) objects which are not supposed to 2) emit anything .It therefore seemed that the area of the 3) event horizon of a black hole could not be regarded as its 4
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第三课 木杆铅笔 Have you a lead-pencil? If not, I want you to get a loan of one, and to look at it very carefully. It is made of woodmost likely of cedar wood, for the wood of the cedar tree is much used for making pencils. 小朋友，你有木
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导购口语: I'd like to see the Apple computers. Do you have? 我想看看那苹果公司生产的电脑，有吗？ My office needs two copy machines. 我办公室需要2台复印机。 Here's a list of the items I want for my office: two boxes of
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[00:01.56]Marco, in turn, was amazed by how beautiful [00:05.54]and powerful China was. [00:07.00]He was very impressed [00:08.41]by Beijing and the Emperor's Palace, [00:11.21]especially the Summer Palace [00:12.95]which he described as The greatest
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-One story about Jack, an Irishman, who was not allowed into Heaven because he was stingy with his money. So he was sent to hell. But down there he played tricks on the Devil (Satan), so he was kicked out of Hell and made to walk the earth forever ca
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1.Black and white 黑白 A:Do you want black and white copies or color copies? B:I want color ones. A：你想要印黑白的还是彩色的？ B：我要彩色的。 2. Face up/face down 面朝上/面朝下 A: When you use the auto feed, do you put the originals face up or dow
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