请将下面这段话翻译成英文：

明朝(the Ming Dynasty) 初期,中国是世界上最发达的国家之一。为了弘扬国力、加强与其他各国的联系,明成祖多次派遣郑和出使西洋。1405年,郑和开始了第一次航行。他的舰队由 200多艘船构成,所载人数超过2万人,包括水手、军人、技术人员、译员等,还有大量黄金和丝绸,用于交易和作为礼品。往返用了两年时间。郑和出使的一些 国家随船派遣使者(envoy),并带来向明朝进贡的贡品(tribute)。郑和下西洋是世界航海史上的一大壮举(feat)。今天,东南亚仍有很多纪念郑和的建筑。

参考翻译

In the early Ming Dynasty, China was one of the most developed countries in the world.In order to transmit its national power and strengthen contacts with other countries,Emperor Chengzu sent Zheng He to the Western Ocean many times.In 1405,Zheng He embarked on his first voyage.His fleet was composed of more than 200 ships and carried over 20,000 men,including sailors,soldiers,technical personnel,interpreters etc.,and large amounts of gold and silk to be used for trade and as gifts.The round trip took two years.Some of the countries Zheng He visited dispatched envoys bearing tributes to the Ming court on his ships.Zheng He's voyages were a great feat in the world's navigation history.Today,there are still many buildings in Southeast Asia dedicated to his memory.

翻译讲解

1.弘扬国力:可译为 transmit its national power或carry forward its national power。
2.加强…联系:可译为 strengthen contacts或者enhance communication。
3.往返:可译为round trip,意为“往返旅行,环程旅行”。
4.郑和下西洋:即“郑和的航行”,可译为Zheng He's voyages。
5.壮举:可译为feat。
6.纪念:可译为be dedicated to one's memory。