adjective🔗Share单宁的，鞣酸的 Pertaining to, containing, or obtained from tannin."The leather used in the new school backpacks is quite tannic, giving it a strong, durable texture. "新款学生书包使用的皮革单宁含量较高，因此质地坚固耐用。substancematerialchemistryChat with AIVocabulary GamePractice Reading
