单词：fluted chucking reamer
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DAVID GREENE, HOST: Today the Middle Eastern country of Lebanon is relatively peaceful, though a civil war raged there in the '70s and '80s. Often Lebanese people don't like to talk about what happened. NPR's Alice Fordham meets a woman trying to sta
2017年NPR美国国家公共电台3月
I am a dreamer. I am a dreamer. I wish I had endless power . When you want to take a picture , I can be your camera When it is bad weather ,I can be your umbrella I am a dreamer, a happy dreamer.
幸福是一种态度
You don't have to be a champagne buff to want the best flavor from your bubbly. So the secret to a perfect glass? It's all in the pour, according to a study in the Journal of Agricultural and Food Chemistry. A key player in champagne's taste is its d
60秒科学
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? You don't have to be a champagne buff to want the best flavor from your bubbly. So the secret to a perfect glass? It's all in the pour, according to a study in
Scientific American(八)月
Recent discoveries in New World archaeology along with newscientific methods for analyzing data have led to new ideas regarding theorigin of the first peoples of the Americas and their time of arrival. 新大陆考古发现和新的科学方法 The t
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