curved       
adjective uk/kɜːvd/ us/kɝːvd/
 圆形的或弯曲的
having a rounded or smoothly bending shape
  a curved surface 曲面 
 The knife has a short, curved blade. 这把刀的刀片短而弯曲。 
 See: curve
 - More examples
 - The ball followed a curved path through the air.
 - Martinhal is a wide, curved beach with a first-class watersports school.
 - The needle was very slightly curved at the end.