Level 6 · word 15,787 of 20,000

spying

/ˈspaɪɪŋ/ American
  • n. 间谍活动, 刺探
Definition
  • n. the activity of secretly watching someone or gathering secret information
Example
He caught his little brother spying on him through the door.
他撞见弟弟正透过门在偷看他。