Peter drove jerkily, cornering too fast and fumbling the gears.彼得转弯太急，换挡不利索，车开得一颠一颠的。He looked up into the mirror as he changed through his gears.他一边换挡，一边抬眼看后视镜。Careless use of the clutch may damage the gears.离合器使用不慎可能会损...
The workers can manipulate the gears and levers of a machine skillfully.工人们能熟练地操纵机件.As she spoke, she watched the muscles in his forearm flex when he shifted gears.她一边说一边注视着他换挡时前臂弯曲的样子.A car has five gears.汽车有五挡。Bicycles...