knocker發音名詞1門環、門扣The old wooden door had a heavy brass knocker shaped like a lion.那扇老木門上有個獅頭造型的厚重銅門環。2乳房、胸部粗俗,常用複數He got slapped for making a crude joke about her knockers.他拿她的胸部開低級玩笑,結果被打了一巴掌。3愛批評的人、挑剔的人口語,貶義Every new plan attracts a few knockers who just enjoy complaining.每個新計畫都會引來一些只愛抱怨的批評者。4敲門者、敲擊者She ignored the knocker at the gate and kept working.她不理門口的敲門者,繼續工作。