雏型

例句：

1. 1. The baby bird isdeveloping its chú xíng.
   这只小鸟正在发育其雏鸟形状。
2. 2. Theartist's sketch shows the chúxíng of the animal.
   艺术家的草图展示了动物的雏鸟形状。
3. 3.The new model car has a sleek chú xíng that catches theeye.
   这款新车型拥有流线型的雏鸟形状，非常吸引人。