When mosquitoes fly, their wing would produce continuous wingbeat sounds.
蚊虫飞翔时，翅上下拍打会形成连续的翅振音。
No one knows, but the legend says that you will be able to hear a butterfly's wingbeat.
没人知道，但传说你将能听到蝴蝶飞翔的声音。
No one knows, but the legend says that you will be able to hear a butterfly's wingbeat.
没人知道，但传说你将能听到蝴蝶飞翔的声音。
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