drooped ailerons

例句：

1. 1. The pilot hadto make an emergency landing due to thedrooped ailerons.
   由于下垂的副翼，飞行员不得不紧急着陆。
2. 2.The aircraft was dipped into the water, causing the drooped ailerons to fold up.
   飞机沉入水中，导致下垂的副翼折叠起来。
3. 3.The plane's descent was slow andsteady, with the drooped ailerons providing stability.
   飞机缓慢而稳定地下降，下垂的副翼提供了稳定性。