[机] 齿尖圆弧衔接点圆直径

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90 numbers words numbers amount count hundreds thousands millions dozen couple pair double triple quadruple first second third fourth add plus minus deduct multiply divide roughly approximately equal several phrases third time lucky have sixth sense

发表于:2018-11-27 / 阅读(196) / 评论(0)

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发表于:2018-11-30 / 阅读(140) / 评论(0)

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发表于:2018-12-07 / 阅读(55) / 评论(0)

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与美国小学生一起学英文第5册第26期:25分硬币

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢？ A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(67) / 评论(0)

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发表于:2018-12-13 / 阅读(90) / 评论(0)

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city 城市 cigar 雪茄 cigarette 香烟 circle 圆圈 circular 圆形的

发表于:2018-12-16 / 阅读(119) / 评论(0)

用听的背单词-基础2000MP3(a-g)

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发表于:2018-12-28 / 阅读(72) / 评论(0)

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图片1 circle n．圆周，圆形物，派系，循环 v. 围，环绕，盘旋例句：I need experience to get a job, but without a job I can't get experienceit' s a vicious circle．我得有经验才能找到工作，可是没有工作我就无法

发表于:2018-12-30 / 阅读(51) / 评论(0)

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发表于:2018-12-30 / 阅读(98) / 评论(0)

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algebra n. 代数 algorithm n. 运算法则 circumference n. 周长 curve n. 曲线 database n. 数据库 decimal adj/n. 十进制 diameter n. 直径 dimension n. 维 equation n. 方程式 facet vt. 刻画平面 geometry n. 几何学 graphic adj. 生动

发表于:2018-12-30 / 阅读(105) / 评论(0)

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Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗？ No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(64) / 评论(0)

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发表于:2019-01-20 / 阅读(134) / 评论(0)

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There is still no news about the 29 miners trapped in the Pike River coal mine. The company is still testing the air quality every half hour but it is still not safe to send in a rescue team. They are also drilling a hole 150mm diameter into the tunn

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