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中文词源： raven 渡鸦 raven 掠夺，狼吞虎咽 来自古英语 hraefn,渡鸦，大乌鸦，来自 PIE*ker,尖叫声，拟声词，词源同 crow,crane. 来自古法语 raviner,抢劫，来自拉丁语 rapina,抢劫，掠夺，来自 rapere,抓走，夺走，词源同 rape,ravish.后引申词义饥饿，狼吞虎咽。 raven
精选例句

常见考点例句：

Then the raven flew over her , screaming again as he flew .

这时，乌鸦从她头顶越过，尖叫着飞走。

This resembles raven , but is a flying bomb , packed with explosives .

它看上去和“渡鸦”有几分相似，但它是轰炸机，携带炸弹。

Aerovironment , based in monrovia , calif. , designed the 4.2-pound , hand-launched raven aircraft currently used by united states military forces in iraq and afghanistan .

aerovironment以蒙罗维亚，哈里发为基础设计了4.2磅手动发射‘掠夺’无人机，现在已经由美军在伊拉克和阿富汗使用。

As I see it , raven is one of the reasons why the u. s.ag industry will continue to do well even if the economy tanks again .

在我看来，即使整体经济再次陷入危机，乌鸦公司提供了美国农业持续向好的最佳理由。

The next month a raven went awol again , this time because of a programming error that sent it south .

次月一架“乌鸦”无人驾驶飞机再次“擅离职守”（awol），这次是由于编程错误，致使它向南飞行。