未筛选材料

Stay on Top of Your Reading

Stay on Top of Your Reading By Richard G. Ensman Jr. Thousands of pages of reading material are put in front of you each month. How can you manage to digest it all? T hey just keep coming and coming:

发表于:2018-12-19 / 阅读(136) / 评论(0)

彭蒙惠英语

Random acts of kindness

Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. My name is Jennifer and with me in the studio for today's programme is Callum. Happy New Year! Callum: Hi Jen - happy New Year! Jennifer: Have you made any Ne

发表于:2019-01-07 / 阅读(71) / 评论(0)

六分钟英语

SSS 2008-08-08

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

发表于:2019-01-08 / 阅读(66) / 评论(0)

Scientific American(八)月

SSS 2008-03-19

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Ants are known for working together, operating as a unit for the good of the colony. But not so fast, say researchers from the Universities of Leeds an

发表于:2019-01-08 / 阅读(65) / 评论(0)

Scientific American(三)月

VOA标准英语2014--Scientists Create Blackest Material Ever

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(59) / 评论(0)

VOA标准英语2014年(七月)

每日一词【891】random：随机、任意的

今天我们要学的词是random。 Random, 是随机、任意的意思。The firefighters have to undergo a random drug test once a year, 消防队员每年要接受一次是否服用毒品的抽查。The boxer refused to submit random blood tests

发表于:2019-02-03 / 阅读(49) / 评论(0)

英语每日一词

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学英语单词

balanced three-phase voltage

basal anal cell

basal cell carcinoma of ear