without a shadow of doubt

• adj. 毫无疑义

without a shadow of doubt的用法和样例：

例句

用作形容词 (adj.)

1. I hold this as absolutely beyond doubt.
   我认为这是毫无疑义的。
2. There is no doubt that education is the foundation of all.
   教育是万业之基，这是毫无疑义的。