【光学】消光光度计

亡者归来:三分之一绝种动物再现世间

Conservationists are overestimating the number of species that have been driven to extinction(消失), scientists have said. A study has found that a third of all mammal species declared extinct in the past few centuries have turned up alive and well

发表于:2019-01-07 / 阅读(36) / 评论(0)

英语新闻

The extinction of men

Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. Rosie: Hi there. Neil: Well, today we're talking about men. Rosie: That sounds interesting. Neil: It is very interesting especially if you'r

发表于:2019-01-07 / 阅读(99) / 评论(0)

六分钟英语

2007年VOA标准英语-More Species Threatened With Extinction

By Lisa Schlein Geneva 12 September 2007 A new report says the number of species threatened with extinction is escalating. The World Conservation Union, which has just released its Red List of Threatened Species, warns life on Earth will continue to

发表于:2019-01-13 / 阅读(85) / 评论(0)

2007年VOA标准英语（九月）

2018年CRI Yangtze River says no to finless porpoise extinction

The Yangtze River is a major habitant for finless porpoise, an aquatic marine mammal close to dolphins. However due to increasing human activities the number of the animal has been declining in China over the years. Provinces along the Yangtze River

发表于:2019-01-19 / 阅读(64) / 评论(0)

2018CRI中国国际广播电台

英语词汇分类：摄影

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)

英文语法词汇

英语新闻视频：Sun Bears - World's smallest bear face extinction

Cambodia is home to the largest population of sun bears left in the wild. As the worlds smallest bear species, they are now facing a high risk of extinction due to the twin threat of habitat loss and illegal hunting. Charities are working hard to sav

发表于:2019-02-04 / 阅读(42) / 评论(0)

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学英语单词

Ackroyds

adjustable interconnection block

Analects of Confucius

beat the pants off someone

biomagnetometer

bromo-acid

carbon nitrogen cycle