音标:[ˈbeisəl ˈsændˌstəʊn] ;
基底砂岩

The rock called sandstone is made up of a great many grains of sand. The beating of the rain on this rock washes the grains apart, and so the hard sandstone slowly changes into loose sand. 砂岩主要由大量沙粒组成。当雨水打下来的时候

发表于:2018-12-07 / 阅读(94) / 评论(0) 分类 英国学生科学读本

The Strange and Beautiful World of Arches National Park 犹他州拱门国家公园:奇怪而美丽的世界 This week on our national parks journey, we travel to Utah. The western state is home to several of the most popular national parks in Americ

发表于:2018-12-16 / 阅读(152) / 评论(0) 分类 2016年VOA慢速英语(十)月

basal cell layer 基底层 Behcet's syndrome 口眼生殖器综合征 bullae 大疱 bullae formation, vesiculation 水疱形成 bullous epidermal necrolysis 大疱性表皮坏死松解症 Candida albi

发表于:2019-01-03 / 阅读(139) / 评论(0) 分类 医务英语

Our story is about a girl named Iris. 我们的故事是关于虹膜女孩的。 Iris is very sensitive. So much that she is always in tears. 虹膜很敏感,以至于总是以泪洗面。 She cries when she's sad, when she's happy, and even tears

发表于:2019-01-17 / 阅读(99) / 评论(0) 分类 TED演讲教育篇

By Barry Unger Washington, DC 09 June 2006 watch Cancer report A pair of studies has discovered a connection between younger black women and a more aggressive form of breast cancer. The disease is affecting black women in both Africa and the United

发表于:2019-01-31 / 阅读(206) / 评论(0) 分类 2006年VOA标准英语(六月)

Lesson 50 Only A Stone 第50课 只是一块石头 What is the oldest thing you have seen? One boy thinks it is a church, for he has seen a date on one which tells that it was built hundreds of years ago. 小朋友,你见过的最古老的东西是什

发表于:2019-02-13 / 阅读(108) / 评论(0) 分类 英国学生科学读本

Hold your hand out and try to keep it perfectly still. After a moment, it will probably begin to shake. Hold that same hand out just before you give a major presentation to your new boss, and youll notice that those normal small tremors increase subs

发表于:2019-02-15 / 阅读(113) / 评论(0) 分类 英语时差8,16