名詞 rudder:

1. a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
2. (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel

1. Some tried to stop up the leaks while others tried to steady the rudder.
   有些人設法堵漏洞，另一些人設法掌穩(wěn)船舵。
2. A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
   翼剖面; 機翼; 翼面一個部件或平面，如機翼、螺旋槳葉、方向舵等，其形狀或方位控制穩(wěn)定性、方向、抬升、沖擊或驅動
3. The wood rudder of the ship was broken.
   船的木頭舵壞了。

rud.der

n.（名詞）

Nautical A vertically hinged plate of metal, fiberglass, or wood mounted at the stern of a vessel for directing its course.
【航?！?/i> 舵：垂直的有鉸鏈的圓盤，用金屬、玻璃纖維或木頭制成，置于船頭之上以調整方向
A similar structure at the tail of an aircraft, used for effecting horizontal changes in course.
方向舵：飛機的尾部的與船舵類似的結構，用于影響航程中水平方向的變化
A controlling agent or influence over direction; a guide.
指導原則：控制機構或對指令的影響；指導

來源：
Middle English ruder
中古英語 ruder
from Old English rôther [steering oar] * see er…-
源自 古英語 rôther [舵漿] *參見 er…-