Cách sử dụng
A rudder is a flat piece at the back of a boat or airplane that helps it steer or change directions. It works by moving left or right, which turns the boat or airplane in that direction. In a boat, the rudder is usually controlled by a steering wheel or tiller, while in an airplane, it is controlled by foot pedals. The rudder is an important part of these vehicles as it helps guide them in the right direction.