證明是的用法和樣例：
例句
-
我猜，它將證明是件很容易的工作。
I imagined it would prove an easy task. -
這種說法證明是不正確的。
The statement prove incorrect. -
那幅原來被人看作是明代作品的畫，後來證明是仿製品。
The painting that used to pass for a Ming product was later proved to be an imitation. -
他那悲觀的預測已證明是錯誤的。
His gloomy prognostications proved to be false.
