idiom
too big to fail
一个公司或机构如此重要以至于不太可能失败
Meaning
a company or institution that is so important that it is unlikely to fail
Example
Many financial institutions were considered **too big to fail** during the 2008 financial crisis.
在2008年金融危机期间,许多金融机构被认为是‘大而不倒’。