verb🔗Share使硬化，使冷酷无情。 To harden; to obdure."The clay began to obdurate in the kiln, hardening as the heat intensified. "在窑炉里，黏土开始变得坚硬，随着温度升高而逐渐硬化。characterattitudemindChat with AIVocabulary GamePractice Reading
adjective🔗Share顽固不化，铁石心肠。 Stubbornly persistent, generally in wrongdoing; refusing to reform or repent."Even after his teacher showed him the correct answers, the obdurate student continued to insist that his wrong solutions were right. "即使老师给他看了正确的答案，这个顽固不化的学生仍然坚持说他错误的解法是对的。charactermoralattitudenegativeChat with AIVocabulary GamePractice Reading
adjective🔗Share坚硬，硬化. Physically hardened, toughened."After years of working with his hands, the carpenter's skin became obdurate and leathery. "做了多年的木工活后，这位木匠的皮肤变得坚硬粗糙，像皮革一样。characterbodyChat with AIVocabulary GamePractice Reading
adjective🔗Share铁石心肠，冷酷无情。 Hardened against feeling; hard-hearted."Even after seeing the child's tears, the landlord remained obdurate and refused to lower the rent. "即使看到了孩子的眼泪，房东仍然铁石心肠，拒绝降低房租。characterattitudemindmoralhumanChat with AIVocabulary GamePractice Reading
