As stable as Mount Tai; rock-solid and unshakable; utterly secure.
经过多年的努力，这家公司的财务状况已经达到了泰山之安。
After years of diligent work, the company's financial standing has achieved the solidity and security of Mount Tai.
Next Idiom
As stable as Mount Tai; rock-solid and unshakable; utterly secure.