I was required to hold out my arms and flex my pectorals.我被要求伸展手臂，收紧胸肌。Take a comfortably wide stance and flex your knees a little.双腿适度分开站立，双膝稍稍弯曲。Side cutters are useful for cutting electrical flex to length.切边钳适用于剪切电线....
His pitching was a legend among major league hitters.他的投球在大联盟的击球员中是个传奇。The ship was rolling and pitching heavily in the rough sea.船舶在狂涛中簸荡.He was pitching the ball.他正在投球....