The planes have to undergo rigorous safety checks. 这些飞机得接受非常严格的安全检查。
The work failed to meet their rigorous standards. 工作没有达到他们的严格标准。
It further implements the safe production responsibility system, and enforces rigorous safe production laws and regulations and a related accountability system. 进一步实行安全生产责任体系，加强严厉的安全生产法规和相关责任体系。
He lived through the rigorous trials of revolutionary war. 他经受了革命战争的严峻考验。
He makes a rigorous study of the plant in the area. 他对该地的植物进行了慎密的研究。
