Level 5 · word 8,398 of 20,000

underside

/ˈʌndərˌsaɪd/ American
Picture: underside
  • n. 下面, 底面
Definition
  • n. the bottom or lower surface of something
Example
There was rust forming on the underside of the old car.
那辆旧车的底部正在生锈。