nothing short of 是什么意思

nothing short of 表示 absolutely、completely 或 truly，也就是“完全是、简直是、确实是”。

例子：
Her performance was nothing short of amazing. → Her performance was absolutely amazing.（她的表现简直太精彩了。）
The flood was nothing short of a disaster. → The flood was a complete disaster.（这场洪水完全是一场灾难。）
His recovery was nothing short of a miracle. → His recovery was truly miraculous.（他的康复简直是个奇迹。）
Their behaviour was nothing short of rude. → Their behaviour was extremely rude.（他们的行为简直太无礼了。）

所以 nothing short of a miracle 的意思是：这真的就是奇迹，不是“差不多算奇迹”。