[00:05.49]Physical changes, such as gray hair and small lines on the face, appear as we grow older. [00:15.78]Now, American scientists say such changes may result partly from changes in our genetic material. [00:24.24]They say these genetic mutations

发表于:2018-12-26 / 阅读(27) / 评论(0) 分类 美国英语听力80篇

BEIJING, May 6 (Xinhua) -- China's General Administration of Press and Publication has urged further efforts to ensure the accessibility of dictionaries for the students in the country's rural and less-developed areas. The administration's appeal cam

发表于:2019-01-07 / 阅读(89) / 评论(0) 分类 英语新闻

1. promote有提拔和促进的意思,但在段中promote是指发起,创立。 eg:Several bankers promoted the new company. 好几个银行家联手创立了这个新公司。 2. distribution,销售(量)。 eg:We have a good product but our

发表于:2019-01-17 / 阅读(86) / 评论(0) 分类 蒋健棠教你听英语广播

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(66) / 评论(0) 分类 科技之光

1. What Is Not Yours Is Not Yours by Helen Oyeyemi 1. 《不是你的就不是你的》海伦欧叶密著 Keys are a recurring theme in Helen Oyeyemi's highly imaginative short story collection What Is Not Yours Is Not Yours keys both metaphorical an

发表于:2019-02-06 / 阅读(27) / 评论(0) 分类 实用英语

Science and technology 科学技术 Scientific publishing 科技出版业 Brought to book 好书来了 Academic journals face a radical shake-up 学术期刊面临彻底改变 2_副本.jpg IF THERE is any endeavour whose fruits should be freely avail

发表于:2019-02-16 / 阅读(27) / 评论(0) 分类 经济学人科技系列