This big ship here was the one sailed in by Zheng he in the early 15th century on his great voyages around the South China Sea, the East China Sea and across the Indian Ocean to East Africa.

这儿的大船是在15世纪早期郑和下西洋时航行的船，它穿过中国东海，南海然后穿行印度洋到达东非。

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Everything is important because the big things are made up of smaller things: the great sea is formed by small particles of water, the vast desert is formed by tiny particles of sand.

每一部分都重要，因为大是由小组合而成的：细小的水分子可以聚成大海洋，而广阔的沙漠则是由细小的沙粒形成。

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Where once the sea had been but one great big expanse of water, suddenly four rivers formed, and these four meandered from beneath the mountains and spread across the whole country.

以前的一片汪洋大海， 突然形成四条大河， 大河流经群山， 遍行全中国。

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