基本解釋前磨牙； 雙尖牙同根派生 premolars相關(guān)詞英漢例句A tooth with a broad crown used to grind food,located behind the premolars.臼齒一種用作研磨食物的有寬齒冠的位于前磨牙后的牙齒。Perhaps that's because the premolars were doing all the hard work, he suggests.他建議道，也許那是因?yàn)榍澳パ雷鲋衅D辛的工作。premolars更多例句