例句與造句

1. The brush-roll motor can sometimes be switched off, so hard floors can be cleaned without the brush-roll scattering the dirt.
2. The additional torque from the spring also alleviates the stress on the hip roll motor during the single support phase of a typical walking gait.
3. The brush roll motor can be switched off manually for use on hard floors, and automatically shuts off when the machine is in the upright locked position.
4. It's difficult to find roll motor in a sentence. 用roll motor造句挺難的