beating wing

• 扑翼

beating wing的用法和样例：

例句

1. 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.
   当然随著扑翼空气动力学及相关学科的发展，未来的一天能够真真正正像鸟一样自由地在天空飞翔也将快成为现实。