常見(jiàn)例句雙語(yǔ)例句Each indoor fire alarm push-buttons shall be equipped with a break-glass push-button and an alarm bell.每個(gè)室內(nèi)火警按鈕都應(yīng)有一個(gè)？？按鈕和一個(gè)警鈴。bbs.chinadaily.com.cnWith a set of buttons and a loud bell, the device, sold by National Cash Register (NCR), was little more than a simple adding machine.全國(guó)現(xiàn)金出納機(jī)公司賣(mài)給他的這套裝置有一組按鈕和一個(gè)很響的鈴鐺，也就一個(gè)加法機(jī)那么簡(jiǎn)單。 返回 bell button