单词：concave optical tool
单词：concave optical tool 相关文章
Texting Becomes a Health Tool in Kenya Mobile phone use in Africa has spread far, wide and fast. By the end of last year, it was estimated that 70 percent of the population would have a mobile phone. Now, the International Federation of the Red Cross
VOA标准英语2013年(四月)
[0:0]occupy ocurrence odd offend占领,占用 发生的事情,事件 奇怪的,古怪的 冒犯,得罪,违反 [0:40.7141]offensive omit onion opening冒犯的,无礼的 省略,删节 洋葱 洞,孔,开口 [1:21.2363]opera operational operator opponent歌剧 运转的,即可使用的 话务员,经营者
闭着眼睛飘单词 四级词汇
A technology company is developing a lie detector app for smartphones that could be used by parents, teachers - and internet daters. 一家科技公司正在研发一款面向智能手机用户的测谎软件，家长、教师甚至线上约会者都可
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We all know time is a construct, and right now, it's kept by the very precise tick of an international network of around 500 atomic clocks. 我们都知道时间是个复杂的概念。目前，世界上有一个由大约500台原子钟组成的网络，
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汉字是由笔画构成的。笔画是书写工具在书写面上的运动，大概有三十种不同类型，有些是基本笔画，有些是复杂笔画。笔画对学习汉字以及书法都有重要作用。下面分别说明。注意，笔画的
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China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
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