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MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio
2018年NPR美国国家公共电台11月
beneath 在美国当代英语语料库统计的20000个常用词中，beneath作为动词的用法排在第1991位， 词义解析： 介词：在下方;到下方 John hid himself beneath the bed. 约翰藏在床底下。 be beneath sb 对来说不够好
英文语法词汇
How Can Air Traffic Controllers Lose a Plane? 一架飞机是怎么消失无踪的 From VOA Learning English, this is In the News. The search for a Malaysia Airlines passenger jet expanded this week. The airplane, a Boeing 777, disappeared last Satur
2014年VOA慢速英语(三)月
GWEN IFILL: Finally tonight: how climate change may be affecting life in Alaska as we know it and the captivating images we see there, from ice to Marine life. NewsHour science correspondent Miles O'Brien went there to see for himself. MILES O'BRIEN:
PBS访谈环境系列
Jet streams, usually located about 30,000 to 35,000 feet up, can bowl along at up to 180 miles an hour and vastly influence weather systems over whole continents, yet their existence wasn't suspected until pilots began to fly into them during the Sec
万物简史
Its surface temperature is a roasting 470 degrees centigrade (roughly 900 degrees Fahrenheit), which is hot enough to melt lead, 它的表面温度高达470摄氏度，连铅都会熔化。 and the atmospheric pressure at the surface is ninety times
万物简史