With developments in flapping wing aerodynamics and related fields, the day when we can glide across the sky as free as a bird will come soon enough.是什么意思_With developments in flapping wing aerodynamics and related fields, the day when we can glide across the sky as free as a bird will come soon enough.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句