The o (n) behavior of repeated in operators hurts performance, but you can't switch to using just a dictionary, as you also need the sequence's order.

在操作上重复o (N)行为损害了性能。但是你不能切换去使用一个字典，因为你需要这个序列的顺序。

youdao

MAUSOLEUM, n. The final and funniest folly of the rich — Ambrose Gwinett Bierce, American satirist, author of "the Devil's Dictionary".

陵墓，名词，富人最终和最滑稽的讽刺剧- - -安布罗斯。G。比尔斯，美国讽刺作家，《魔鬼辞典》的作者。

youdao

There have been a couple of previous attempts to define and propagate Fauxhemia(n), notably by Urban Dictionary, which specifically attached the word to a place where trendiness hides the high rents and trust funds.

FORBES