n. 灰砷铜矿；淡红砷铜矿
[网络] 达尔文玻璃

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Section A Short Conversation [00:04.78]1.It seems to me that there is no need to have a screen on the door in the winter [00:12.04]We usually put it on in summer, don't we? [00:16.90]The only reason for having a screen on the door is [00:21.94]to kee

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2011年VOA慢速英语(十一)月

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2017年NPR美国国家公共电台7月

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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学英语单词

aflagellar stage

anemoplankton

anti-coincidence detector

arc control system

asymmetric induction

aurintricarboxylic acid

automatic antijam circuit

automatic emergency shut-down and slowdown circuit

babyishly

bare height

basalt clay(basalt wacke)