格雷迪发现，即使在富尔顿鱼市，完全竞争也难觅踪迹。

Graddy discovered that even at Fulton, perfect competition was elusive.

youdao

格雷迪发现，即使在富尔顿鱼市，完全竞争也难觅踪迹。

Graddy discovered that even at Fulton, perfect competition was elusive.

youdao