中国経済、ついに「万事休す」…格下げ連発で債務の肩代わりも不可能、事実上の「財政破たん」へまっしぐら

China’s economy has finally reached the end of its rope… A series of downgrades has made it impossible to replace its debt, and the country is heading toward de facto “financial ruin.

引用元(reference)：https://gendai.media/articles/-/123820

意味：もはや施す手段がなく、万策尽きる。もはやおしまいで、何をしてもだめだという場合に使う。
Meaning:　There is nothing more that can be done. It is used when there is nothing more to be done and nothing can be done.