idiom > Although the cover can be complex
Although the cover can be re-

  Explanation: Review: overturned; re: recovery. Although overturned, but also recovery. Means that after erratic.
  Source: "Guiguzi flying clamp": "may be cited the contrary, may be cited the reply. Although cover to cover, without losing their degrees."
  Examples: "~" It is something to fear. But a means, we often met socially. ★ Lu Xun "padding II"