to be discovered to be; to prove to be 原来是;证明是;结果是
turn out that…
It turned out that she was a friend of my sister.
她原来是我姐姐的朋友。
🔊🔊
turn out to be/have sth
The job turned out to be harder than we thought.
这工作结果比我们想象的要难。
🔊🔊
The house they had offered us turned out to be a tiny apartment.
他们向我们提供的房子原来是很小的公寓套间。