Is it true that Americans are living "paycheck to paycheck"?

美国人真的生活在“月光”之中吗?



(paycheck to paycheck, 形容这个月工资花完了盼着下一个月的工资单过日子。)

I've been seeing online a lot of commentators saying that American citizens are living "paycheck to paycheck" and made me wonder how is it possible considering the USA is still #1 or very possibly #2 economic power in the World after China?
I am from Serbia and love my country but due to low pays here made me want to move to the US at the time. When I was younger all I've seen on media is that Americans live pretty comfortable lives with no major economic issues.
So average American citizens, is there any truth to the claim that Americans are living "paycheck to paycheck" and that the US economy and life are not that perfect?

我在网上看到很多评论家说美国公民在"靠下一个月的工资单过活",这让我很好奇,考虑到美国仍然是世界上仅次于中国的第一或第二经济大国,这怎么可能呢?
我来自塞尔维亚,热爱我的国家,但由于这里的低工资,我曾想搬到美国去。当我年轻的时候,我在媒体上看到的都是美国人过着相当舒适的生活,没有重大的经济问题。
那么我想问一下普通的美国公民,关于美国人"靠下一张工资单生活"的说法是否有道理,美国的经济和生活并不那么完美?