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	precaution precautionary precautioned precautioning precautions precautious precautiously precautiousness precava precavae precaval precaval sinus precedable precede preceded precedence precedences precedencies precedency precedent precedent condition precedented precedentless precedently precedents

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