1. Detaining and ticketing such drivers is not the purpose of the roadblock and would unduly slow down the stops of other cars. 拘留和对这类司机开罚单不是设置路障的目的，而且会使其他车辆过度减速。
2. Detaining and ticketing such drivers is not the purpose of the roadblock and would unduly slow down the stops of other cars. 拘留和对这类司机开罚单不是设置路障的目的，而且会使其他车辆过度减速。
3. Whether it is a health roadblock. 这路障可能是你的健康。
4. Six policemen started to erect a roadblock. 六个警察着手建立一道路障。
5. Police set up a roadblock on Lower Thames Street. 警察在下泰晤士大街设置了路障。
