n.舵；方向舵；指导原则
The wood rudder of the ship was broken. 船的木头舵坏了。
Without a rudder the ship was not navigable. 这船没有舵无法驾驶。
A life without a purpose is a ship without a rudder. 没有目标的生活好比没有船舵的船。
What is the dietary rudder of the patient after esophagus cancer art? 食管癌术后病人的饮食指导原则是什么？
n.无指导者的；无舵的
