zhè / bù / shǐ / shū / xiáng / xì / jì / zǎi / le / gǔ / dài / xǐ / róng / xíng / dòng / de / bèi / jǐng

这部史书详细记载了古代徙戎行动的背景。

This history book records the background of an ancient relocation campaign in detail.