heaven-sent (also heaven sent)

• 1. 

  ADJ You use heaven-sent to describe something such as an opportunity which is unexpected, but which is very welcome because it occurs at just the right time. (机会等)天赐的 [usu ADJ n]

  例：

  It will be a heaven-sent opportunity to prove himself.

  那将是他证明自己的一个天赐良机。