A variable pitching moment is provided by moving the elevator.俯仰力矩的变化由升降舵的偏转来提供.
They decided to beef up the baseball pitching staff by getting new men.他们决定征选新人,来增强棒球队的投手群.
The farmers were pitching hay on to [ on to ] the cart.农夫们正在把 干草 扔上货车.