rigorous例句

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 the rigorous climate.
士兵们尚未能适应此种严寒的气候.