The machine chops up tree branches and leaves with speed and ease.这种机器能方便快捷地砍去树枝和树叶。The rollers twine into dry hair with speed.卷发筒很快卷到了干发上。Bowman has a dangerous obsession with speed.鲍曼对于速度的迷恋到了一种危险的程度。She acted with speed and efficiency.她的行动快速有效。He plays the piano with speed and fluency.他钢琴弹得又快又流畅。