单词：light seconds
(light second 的复数)
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The summer weather this year has been even more unexpredictable than usual. Yesterday was no exception. My day at work had not gone pariticularly well and I returned home in a bit of a mood. My parents are staying for a few days and they were watchi
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This is Scientific American sixty seconds science. I am Karen Hopkin. This will take just a minute. Your morning coffee. A baking pie. That turkey in the oven. There are some smells you just cant get enough of. But mix them and other scents all toget
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Why Is It So Difficult To Spot A Plane In The Air? How many times have you heard a jet plane going over, looked up to see it, but not been able to find it even though you were looking toward where the sound was coming from? Well, this moment of scien
英语听力文摘 English Digest
I can still taste you like it was yesterday Making plans to rule the world you were more than I deserved I see you running in the sand long hair blowing in the wind Never thought that it would end Leaves fall from the tallest trees Even mountains cru
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AS IT IS 2014-03-16 Device Finds Malaria Infections in Seconds 通过医疗设备发现人体内疟疾感染只需几秒钟 Hello, and welcome to As It Is, from VOA Learning English. Im Steve Ember in Washington. Today on the program, we report on ho
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Afterglow Heres an experiment you can try: look at something bright relative to its surroundings, such as a lamp or a sunny window, for ten seconds without blink ing . Then shut your eyes and cover them over with your hands. You will find that the la
英语听力文摘 English Digest