Economic Expansion Period的意思|示意

Barely five years later, after a nasty recession, the country began a period of uninterrupted economic expansion matched by no other rich country.

一次严重的经济衰退过后仅仅5年，这个国家就开启了不间断的经济扩张时期，没有任何富裕国家能与之匹敌。

It was the period of the establishment of the two-party system and the key period of economic and territorial expansion of the country.

这个时期也是美国两党制形成、对外经济扩张和领土扩张的重要时期。