①If you describe something as diabolical, you are emphasizing that it is very bad, extreme, or unpleasant.【adj.糟透的;极其恶劣的;非常讨厌的】
②Diabolical is used to emphasize how evil something is.
①It was a diabolical error, a schoolboy error.
②The pain was diabolical .
③One speaker today called the plan diabolical and sinister.
Romain Gary的小说 Promise at dawn 也出现了两次这个表达：
bury one's head in the sand
Ignoring something that's obviously wrong, not facing reality.
You can bury your head in the sand if you want to, but Bruce is stealing, and sooner or later we’re going to have to deal with it.
《卫报》一篇题为 Stuck in the middle with the love 的文章也提到了这个表达：