參考答案:

Zheng He was a great Chinese explorer and fleet commander. His seven main expeditions explored the world for the Chinese emperors and established the trade links between China and new areas. The Emperor Yongle wanted to show off the glory and power of the Chinese Empire to the world. He also wanted to establish the business relations with other countries. So, he appointed Zheng He as the Chief Envoy and asked him to set up a fleet to explore the world. Zheng He commanded a large fleet, whose first voyage was estimated to have over 200 ships and nearly 28,000 men.

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