Level 5 · word 5,965 of 20,000

detector

/dɪˈtektər/ American
Picture: detector
  • n. 探测器, 检测器
Definition
  • n. a device used to find or detect something
Example
The smoke detector beeped loudly when it sensed the fire.
烟雾探测器一感应到火情就大声报警。