单词：length of a knot
单词：length of a knot 相关文章
CHAPTER FOUR READING [00:04.18]A dangerous sevant. [00:10.74]One evening,Daisy said 'I'm going to the shop to buy a packet of sweets. [00:19.10]Does anyone want anything? 'Benny,Daisy's brother said,'Yes. [00:28.24]Can you get me a packet of electric
上海牛津初中英语八年级
Of the many puzzles mathematicians ponder, one is new ways to tie knots. There are more than six billion different types of knots that have been tabulated by mathematicians. Six billion. David Leigh, a chemist at the University of Manchester in the U
2017年Scientific American(一)月
说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 arm [ B:m ] He received a call to arms
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Up in arms At arm's length 在美国人讲话时，或从书刊报纸上，你经常可以听到或见到一些由手臂，就是英文里的arms这个字组成的成语或俗语。有些习惯用语从
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Larry和李华今天去给他们的朋友Jim买结婚礼物。Jim下个周末就要结婚。今天李华会学到两个常用语：to tie the knot和drop-dead gorgeous. LL: I can't believe Jim is goin
美国之音《流行美语》
[00:39.12]height 高度 [00:43.33]length 长度 [00:47.42]mathematician 数学家 [00:52.35]be required to do something 被要求做某事 [00:58.34]measuring tape 卷尺 [01:04.45]A team of mathematicians were required [01:06.76]to measure the heigh
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