名词：

1.灯；

"a mechanical appliance, instrument, or tool

"

"It isn't hard to do, she said, bending over. You just take this so, fasten it with this clamp, and start the machine.“这不难做的，”她弯下腰说道，“你这样拿着这个，用这个夹子把它夹住，然后开动机器。”