a small oval object with a thin hard shell produced by a female bird and containing a young bird; a similar object produced by a female fish, insect, etc.
egg的特点：
一种小的椭圆的物体（a small oval object）有一个薄的硬的壳（with a thin hard shell）产生于雌性的鸟并且其中包含它们的幼崽（produced by a female bird and containing a young bird）类似的还产生于雌性的鱼、昆虫等等（a similar object produced by a female fish, insect, etc）
(资料图)