Pullback motor
01
回力马达, 发条马达
a toy motor found in vehicles that moves the toy forward when pulled back and released, without using batteries or external power sources
例子
I wound up the pullback motor on my toy car, and it zoomed across the floor.
我给我玩具车的回力马达上了发条，它在地板上飞速行驶。
My younger brother loves playing with his pullback motor toys because they do n’t need any batteries.
我弟弟喜欢玩他的回力马达玩具，因为它们不需要任何电池。
