This was the period when the city of Angkor in present-day Cambodia went into rapid decline, a fact that some historians have blamed on invasions by the rival Siamese and Champa kingdoms.

这是吴哥在现在的柬埔寨快速衰退的一个时期，也是一些历史学家指责竞争者暹罗人和占婆王国入侵的事实。

youdao

This was the period when the city of Angkor in present-day Cambodia went into rapid decline, a fact that some historians have blamed on invasions by the rival Siamese and Champa kingdoms.

ECONOMIST: Tree rings are laying bare the climatic history of Asia