腋窝的羽翼

例句：

1. 1. The airplane's aerodynamic design is crucial for its performance.
   飞机的空气动力学设计对其性能至关重要。
2. 2. The aerodynamics of the wings are essential for lift and control.
   翅膀的空气动力学对于升力和控制至关重要。
3. 3. The aerodynamics of the aircraft were studied extensively in the 19th century.
   飞机的空气动力学在19世纪得到了广泛的研究。