英语词汇“keystone”的读音、翻译、释义、用法及例句-初旭网

词汇	keystone
释义	key.stone可数名词 1‘建筑’ (拱门上端的) 拱心石, 楔石 2 要旨, 基本原理[of] 3 (又作 keystone sack) (棒球俚)二垒
随便看	military salvage military science military secrets military service military testament military time militate militia militiaman milium milium milk Milk milk abscess milk adder milk-and-water milk bar milk chocolate milk churn milk cow milk crust milker milk fat milk fever milkfish

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