grooved bit

例句：

1. 1. The grooved surface of thecar is smooth to the touch.
   汽车有槽的表面摸起来很平滑。
2. 2. The grooved pattern on the wall adds a uniquetouch to the room.
   墙上的有槽图案给房间增添了独特的触感。
3. 3. Thegrooved edges of the spoon are perfectfor scooping up food.
   勺子的有槽边缘非常适合舀取食物。