zapper

复数：zappers

n.an electrical device that can injure or kill by means of electric currents

"a bug zapper"

1. I bought a new mosquito zapper to get rid of the bugs in the garden.
   我买了一个新的电蚊拍来消除花园里的蚊子。
2. He sat in front of the TV, remote in hand, zapping through the channels.
   他坐在电视机前，手里拿着遥控器，快速切换频道。
3. The zapper is very effective at killing mosquitoes without using chemicals.
   这个电蚊拍在不使用化学物质的情况下，非常有效地杀死蚊子。
4. She was a real zapping enthusiast, flipping through channels at lightning speed.
   她是个真正的频道切换爱好者，闪电般地切换频道。