After all, Zheng's men were at sea for months on end and must have been desperate for female company when they came ashore. It makes perfect sense to imagine that they left some mixed-blood children in their wake.
試想，船員、士兵一出海就是經年累月，上岸後極需尋求生理慰藉，與當地女子交歡留下混血兒，從理論及實際上來說，都極為合情合理。