每晚你都会听见炼钢厂的下班哨声。Every night you could hear the whistles of the steel mill.裁判最后吹响了终场的哨声。The referee finally blew the whistle to stop the game.乘务员哨声一响,司机开动机车.At the conductor's whistle the engine - driver starts his l...
The local administration says the curfew is a precautionary measure.地方当局说宵禁是一种预防措施。A twelve hour night time curfew is in force.正在执行12小时的宵禁。The army imposed a dusk-to-dawn curfew.军队强制实行黄昏至黎明的宵禁。...
It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.由二苯并-1,3-二氧杂 - 环辛烷 -2- 羧酸经两步反应制得, 总收率70%....