短語(yǔ)詞組短語(yǔ)safe -guard door chai 防盜門(mén)鏈safe and guard 安然無(wú)恙Intelligent Safe -guard System 智能安防系統(tǒng)safeguard mechanism 保障機(jī)制safeguard against 防範(fàn)；預(yù)防 返回 safe guard