The adult cicada has two sets of wings which can shake together to produce a high, continuous sound when the weather is hot.
成年蝉有两对翅膀，当天气炎热时，这两双翅膀一起震动，发出一种巨大而连续的响声。
On the one hand, the sound of liberty, the careless happiness of the leisure which has wings; on the other, the sound of toil.
一方面是自由、自得其乐和长了翅膀的悠闲的声音，另一方面是劳动的声音。
The sound of an eagle's wings beating as it takes off majestically from the top of a mountain? "That sound will invariably be made by an umbrella opening and closing," Palmer says.
“老鹰在山顶扑哧着翅膀准备飞起来的声音其实是通过雨伞的一开一合发出的，”帕尔默说道。
Getting lost here pays – the tramp of a thousand tourists yields to tranquil sunlit courtyards and the sound of pigeons’ wings.
不过，迷失在威尼斯是要付出代价的——数以千计的旅行者屈服于这片土地，纵使耳边环绕着信鸽振翅的轻响，满眼稀疏日光下宁静的小院。
The study provides sound experimental evidence that flexible wings add to flight performance, comments Robin Wootton of the University of Exeter in England.
英国埃克塞特大学的罗宾·沃顿评论说，这项研究提供了充分的实验证据，证明了柔软的翅膀能提高飞行性能。
Boeing Boomless Jet: Boeing's concept places the engines on top of the wings, adding an extra sound barrier.
波音的静音喷气机：波音公司的概念图，将引擎放置在在机翼上方，并且增加一个额外的音障。
Boeing Boomless Jet: Boeing's concept places the engines on top of the wings, adding an extra sound barrier. NASA via wired.
波音的静音喷气机：波音公司的概念图，将引擎放置在在机翼上方，并且增加一个额外的音障。
The last time he flew right above her, so close she could hear the sound of his wings.
还有一次他正好走她头上飞过，他们的距离是那么的近，丹妮甚至听到了翅膀拍打的声音。
And the sound of the wings of the cherubims was heard even to the outward court as the voice of God Almighty speaking.
革鲁宾展翅的响声达于外院，像全能的天主讲话的声音。
Manifestation: Accompanied by the sound of flapping wings and cawing crows, Astaroth manifests as a hideously ugly angel.
显现：伴随着一阵扑翼声和乌鸦的鸣叫。
A sound filled my ears, which seems like the rushing of wings.
我耳朵里充满了一种类似翅膀扑打的声音。
Butt the restless say, "We have heard her shouting among the mountains, and with her cries came the sound of hoofs, and the beating of wings and the roaring of lions."
但活泼好动者说： 姇“我们曾听到她在山谷中大声呼叫，随其呐喊而来的是足蹄踏地、翅膀拍击和雄狮怒吼的声音。”
The next bird flies overhead, and the pathologist looks at it, then looks through the pages of a bird manual, and says, "Hmmmm … green wings, yellow bill, quacking sound … might be a duck."
第二只鸟飞过头顶，有福不在忙医生对着鸟类图谱看了看说：恩，绿色的翅膀，黄色的嘴，嘎嘎的叫声…应该是只鸭子。
But the restless say, "We have heard her shouting among the mountains, and with her cries came the sound of hoofs, and the beating of wings and the roaring of lions."
但活泼好动者说：“我们曾听到她在山谷中大声呼叫，随其呐喊而来的是足蹄踏地、翅膀拍击和雄狮怒吼的声音。”
And they found that the sound make by wings flapped in terror includes a distinctive sort of whistle.
科学家们发现在危险情况下，这些鸽子的翅膀产生的声音模式具有一种明显的呼啸声。
The sound of ancient temple bells drifts far without wings.
古寺的钟声，虽无翅，也能飞扬。
The sound of ancient temple bells drifts far without wings.
古寺的钟声，虽无翅，也能飞扬。
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