英语词汇“keystone”的释义、区别辨析及用法例句-英语同义词词典

单词	keystone
例句	keystone noun •the keystone of the government's policy:foundation, basis, linchpin, cornerstone, base, principle, guiding principle, core, heart, center, crux, fundament.
随便看	actor, actress actual actuality actually acumen acute acutely adage adamant adapt adaptable adaptation add addendum addict addicted addiction addictive addition additional additionally additive addled address adduce

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