Level 6 · word 15,610 of 20,000
knocking
/ˈnɑːkɪŋ/
American
- n. 爆震
- Definition
- n. a loud repeated noise made by an engine when fuel burns unevenly
- Example
- Someone is knocking on the front door right now.
- 现在有人正在敲前门。
Word familyknock-
v.