As the rotors turn, they generate turbulence, like the wake of a speedboat motor.

转子转动时会产生紊流，就像快艇的发动机产生的尾迹。

youdao

Bargitta: Why doesn't father turn the motor on?

布：爸爸，为什么不把马达发动起来？

youdao

Those are possible problems, but tell me, when you turn the key, do you hear the starter motor crank?

这些都可能存在问题。但是你先告诉我，当你转动钥匙时，你听到发动机转动了吗？

youdao

She said understanding better how motor skills are learned might, in turn, help with treating motor skill disorders such as dyspraxia.

BBC: Image of golfer Tiger Woods

Led by Kirby Day, Princess' director of shore operations, the industry worked out a plan with Juneau to cut down on noise (prohibiting flightseeing tour departures before 8 a.m. or after 7 p.m.) and pollution (encouraging motor coaches to turn off engines when loading and unloading passengers).

FORBES

You would be hard pressed to find a motor sports enthusiast that would turn down a few days at the race track.

FORBES: Automotive Gift Guide For Car Lovers