她终于意识到她的朋友其实是个操纵者，一直在利用她的善良。

She finally realized her friend was one of those ___manipulators who had been taking advantage of her kindness.

手术机器人配备了精密的机械臂，可以准确地进行微创手术。

The surgical robot is equipped with precise ___manipulators for performing minimally invasive procedures.