帮助学生做数学题的手机应用 WASHINGTON School children usually can count on their parents to help them check if their homework is correct. But as students get older and their assignments get more complex, few parents are qualified to assi

发表于:2018-12-08 / 阅读(24) / 评论(0) 分类 VOA标准英语2015年(七月)

We do it for the Insta We do it for the Gram Then goes out to take pictures With a body like that We do it for the Insta We do it for the Insta When she's done taking pictures Don't forget the hashtag We do it for the Insta We do it for the Gram Then

发表于:2018-12-16 / 阅读(130) / 评论(0) 分类 英文歌曲

一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 ir-(放在同辅音词根前)表示不,无 irrational = ir + rationa

发表于:2018-12-19 / 阅读(48) / 评论(0) 分类 英语PK台

Youre not under arrest, despite the fact that you probably have some drugs in your pocket. Because theres a good chance your paper money contains trace amounts of cocaine. According to a study presented August 16th at the American Chemical Societys n

发表于:2019-01-08 / 阅读(49) / 评论(0) 分类 Scientific American(八)月

photo, photograph 照片,像片 snapshot, snap 快照 photographer, cameraman 摄影师 backlighting 逆光 backlighting photography 逆光照 luminosity 亮度 to load 装胶卷 focus 焦点 to focu

发表于:2019-02-02 / 阅读(53) / 评论(0) 分类 英文语法词汇

Say it with us: Kids today have it sooooo easy. A new smartphone app will do their math homework for them, provided it's not too complicated. PhotoMath by microblink uses a phone's camera to solve equations and then teaches you the step-by-step metho

发表于:2019-02-02 / 阅读(39) / 评论(0) 分类 阅读空间