Level 6 · word 16,979 of 20,000
alertness
/əˈlɜːrtnəs/
American
- n. 警觉, 机敏
- Definition
- n. the state of being watchful and quick to notice things
- Example
- Drinking coffee in the morning helps him maintain alertness during meetings.
- 早上喝咖啡有助于他在开会时保持警觉。
Word familyalert-
adj.