方向舵

例句：

1. 1. The pilot used the directional rudder to turn the plane around.
   飞行员使用方向舵来使飞机转弯。
2. 2. The boat's directional rudder was damaged during a storm.
   暴风雨中，船的方向舵受损了。
3. 3. The captain adjusted the directional rudder to follow the wind's direction.
   船长调整方向舵以跟随风向。