英语语法分析

China has one of the world's oldest continuous civilizations—despite invasions and occasional foreign rule.

尽管中国曾遭受过侵略，且曾经暂时被外族统治过，中华文明仍然是全世界最古老且连续的文明之一。

Historians credit repeated locust invasions in the nineteenth century with reshaping United States agriculture west of the Mississippi River.

历史学家认为，19世纪一再发生的蝗虫入侵改变了美国密西西比河以西的农业格局。

Iv.viking and Danish invasions.

北欧海盗和丹麦人的入侵。