短語(yǔ)詞組短語(yǔ)Pedestrian Detection safety system 行人探測(cè)安全系統(tǒng)pedestrian safety devices 行人安全設(shè)施Pedestrian safety campaign 行人安全方案Pedestrian Safety Enhancement Act 行人安全促進(jìn)法案pedestrian comfort and safety 行人舒適感和安全感refuge safety island pedestrian island 供行人穿過(guò)馬路時(shí)躲避車(chē)輛的地方 返回 pedestrian safety