rudder

名词 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.
   有些人设法堵漏洞，另一些人设法掌稳船舵。
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; 机翼; 翼面一个部件或平面，如机翼、螺旋桨叶、方向舵等，其形状或方位控制稳定性、方向、抬升、冲击或驱动
3. The wood rudder of the ship was broken.
   船的木头舵坏了。

rud.der

n.（名词）

Nautical A vertically hinged plate of metal, fiberglass, or wood mounted at the stern of a vessel for directing its course.
【航海】 舵：垂直的有铰链的圆盘，用金属、玻璃纤维或木头制成，置于船头之上以调整方向
A similar structure at the tail of an aircraft, used for effecting horizontal changes in course.
方向舵：飞机的尾部的与船舵类似的结构，用于影响航程中水平方向的变化
A controlling agent or influence over direction; a guide.
指导原则：控制机构或对指令的影响；指导

来源：
Middle English ruder
中古英语 ruder
from Old English rôther [steering oar] * see er…-
源自 古英语 rôther [舵浆] *参见 er…-