基本解釋[經(jīng)濟學(xué)]信號鐘英漢例句雙語例句Mosqyito trap, garden products, door bell, annunciator.滅蚊器、花園用品、門鈴、防盜器。bell annunciator更多例句詞組短語短語annunciator bell 來車信號鈴;列車接近鈴;信號鈴bell annunciator更多詞組專業(yè)釋義經(jīng)濟學(xué)信號鐘