thrust wall的用法和樣例：
例句
- Place the piano with its back against the wall.
把鋼琴的后背靠墻放。 - Ventress watched, perversely fascinated, the play of muscles on his back and taut ass, as he thrust and arched, trying vainly to increase the friction.
文崔斯極度著(zhù)迷地看著(zhù)他展示后背和屁股上的緊湊肌肉，不斷地擦過(guò)去又弓起身來(lái)，徒勞地試圖增大摩擦力。
