单词：operculate
- operculated有鳃盖骨的
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单词解析速记
by Jason Marshall In the last article, we talked about averages and one specific way statistics can help answer questions without letting emotions interfere. But the type of average value we talked about is just one of manyuseful meanings assigned to
数学英语
图片1 图片2 by Jason Marshall A few articles ago, I asked if you ever found yourself at restaurants fumbling to figure out how much to tip; I guessed that you might occasionally resort to seeking advice from your smart phone; and I told you that
数学英语
by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag
数学英语
By Gary Thomas Washington 11 January 2006 Iran has incurred international displeasure for its decision to resume work on its controversial uranium enrichment program. British Prime Minister Tony Blair
2006年VOA标准英语（一月）
unit 410 打越洋电话至北京 dialogue 英语情景对话 A:Opercrtor, I want to make a collect overseas phone call to Beijing. A:接线生，我要打一通对方付款的越洋电话到北京。 B:Whom would you like to talk to? B:您要找哪？
高频英语口语对话