...I am not the one to undermine the propriety of Senor Don Quixote, for it strikes me that among his many virtues the one that is pre-eminent is that of modesty... 
Miguel de Cervantes 「The History of Don Quixote, Volume II., Complete」
...More than half self-hypnotized into a belief in his owncharlatanry he faced this new demon who threatened to undermine hisancient and lucrative profession...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
... Thus maypeace and prosperity undermine the safety of the most primitivecommunity even as it does that of the most cultured...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
...For a character such as this to meetwith harsh treatment, much less cruelty,was, if not to ruin it completely, at leastto undermine all confidence...
Major Gambier-Parry 「'Murphy'」
...They can undermine such cliffsindeed, and then grind the fragments to powder, but their direct actionis limited...
Oliver Lodge 「Pioneers of Science」
ランダム例文：
acquiescing restraint missive
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