wingstub

例句：

1. 1. The airplane's wingtip was damaged during the crash.
   飞机的翼尖在坠毁时受损。
2. 2.The pilot used his wingtip to guide the plane through the storm.
   飞行员利用翼尖引导飞机穿越暴风雨。
3. 3. The bird's wingtip is thin and delicate, making it difficult for it to fly.
   这只鸟的翼尖很薄且脆弱，这使得它很难飞行。