Why no 了after the 恢复?  by DavidLJ  Superman Site Supporter   18. Jan 2016

他 在 意外 发生 的 三 个 小时 后 恢复 意识 。

He regained consciousness three hours after the accident.

Or is it an option? Or does the 后 in 小时 后 give the sentence all the 了-ish flavour it wants?
wei  Superman Site Supporter   23. Feb 2016

It's an option, both ok!

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