单词	spruer
释义	spruer noun spru·​er ˈsprüə(r); -u̇(ə)r, -u̇ə plural -s : one that attends to the sprue occupying the gate in the process of casting iron Word History Etymology sprue entry 2 + -er
随便看	exterminates exterminating extermination exterminations exterminative exterminator exterminators exterminatory extermine extermined extermines extermining extern external external account external angle external audit external ballistics external brake external combustion engine external degree external examination external gill external loan external lobe

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