He had no idea of its provenance.他不知道其出处。All the furniture is of English provenance.所有这些家具都是英国货。Kato was fully aware of the provenance of these treasures.加藤完全清楚这些珍宝的来源。...
Taxis must conform to the rigorous standards laid down by the police.出租车必须遵守警方的严格规定。The selection process is based on rigorous tests of competence and experience.选拔过程是基于对能力和经验的严格测试。The soldiers were not yet seasoned to t...