英语词汇“keystone”的意思、释义、用法及双语翻译-时代网

词汇	keystone
释义	noun Changes to the welfare system are the keystone of the government’s reforms.
随便看	unit trust unittrust unit trusts unity Univ. univ universal universal-declaration-of-human-rights Universal Declaration of Human Rights universalities universality universal-joint universal joint universaljoint universally universally universalness universal-product-code Universal Product Code universals universe universes universities university university-challenge 参校参检参照参照物参照系参用参画参看参破参禅参缀参考参考书参考系参股参色参见参观参订参议参议会参议员参议院参议院参访

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