Can Wood Be Stronger Than Steel? Researchers say they have created a new super-material in the laboratory. They say it is stronger, lighter and costs less than steel. 研究人员表示,他们在实验室中造出了一种新的超级材料。他们称

发表于:2018-12-08 / 阅读(36) / 评论(0) 分类 2018年VOA慢速英语(三)月

第一句:Our silk garments are made of super pure silk material and by traditional skills. 我们的丝绸服饰是用顶级纯丝根据传统工艺制成的。 A: Our silk garments are made of super pure silk material and by traditional skills. 我

发表于:2018-12-26 / 阅读(26) / 评论(0) 分类 天天商务口语

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(72) / 评论(0) 分类 2014年VOA慢速英语(九)月

Russian-born Andre Geim and Konstantin Novoselov, both from Manchester University in Britain, won the prize for their groundbreaking experiments with graphene, a microscopic flake of carbon. The pair first extracted the super-thin flake from a piece

发表于:2019-01-14 / 阅读(41) / 评论(0) 分类 VOA标准英语2010年(十)月

Scientists from the University of Central Florida (UCF) have created a supercapacitor battery prototype that works like new even after being recharged 30,000 times. 来自中佛罗里达大学(UCF)的科学家已经创造了一个超级电容电池

发表于:2019-02-02 / 阅读(34) / 评论(0) 分类 英语新闻

Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have

发表于:2019-03-06 / 阅读(164) / 评论(0) 分类 英语时差8,16