tapered ned

例句：

1. 1.The river has a tapered shape.
   这条河的形状是逐渐变细的。
2. 2.The roof of the house is tapered at the top.
   房子的屋顶在顶部是逐渐变细的。
3. 3. The blade of the knife is tapered to fit into the handle.
   刀的刀片是逐渐变细以适应手柄。