boom attachment

例句：

1. 1. The newcar has a powerful engine that can producea lot of power when it'sin motion.
   这辆新车有一个强大的引擎，运动时可以产生很多动力。
2. 2. The boomerang attachment on the toy isdesigned to make it fly back and forth.
   玩具上的回旋镖附件设计成让它来回飞。
3. 3. The scientist attached a sensor tothe robot to monitor its performance.
   科学家给机器人装上了一个传感器来监测其性能。