shǐ huáng dì / xià lìng / xiū zhù / cháng chéng / yǐ / dǐ yù / běi fāng / yóu mù mín zú始皇帝下令修筑长城,以抵御北方游牧民族。The First Emperor ordered the construction of the Great Wall to defend against the nomadic peoples of the north.