cháng / jiāng / zhōng / xià / yóu / yǒu / xǔ / duō / yī / kào / wéi / yuàn / bǎo / hù / de / nóng / tián

长江中下游有许多依靠圩垸保护的农田。

There are many fields in the middle and lower reaches of the Yangtze protected by polders.