铁路警察

woman police constable───女警察

woman police constables───女警察

police constable───警员，警察

police constables───警员，警察

railway timetable───列车时刻表；火车时刻表

railway police───路警

railway timetables───列车时刻表；火车时刻表

detective constable───警探

lattice constant───[晶体]晶格常数；[计]点阵常数

Kasab, the baby-faced militant who was photographed striding through the railway station with a machine gun, was eventually overpowered by a police constable whom he had shot five times.───一张娃娃脸的激进分子卡萨伯被拍到正拿着一把机关枪大步穿过火车站，他最终被一名警察制服，他朝这名警察开过五枪。