英语语法分析

After this he resumed to Syria so as to prepare himself and take the offensive against the Parthians.

之后，他又回到叙利亚作准备，再次对帕提亚发动了攻势。

He proposes that Rome should allow the Parthians to hold sway over the territory east of the Euphrates.

他提议罗马允许帕提亚人统治幼发拉底河东部的领土。