Level 6 · word 17,863 of 20,000

darkening

/ˈdɑːrkənɪŋ/ American
  • n. 变暗
Definition
  • n. the process of becoming darker or less bright
Example
The darkening sky warned us that a storm was coming soon.
渐渐暗下来的天空提醒我们暴风雨即将来临。