Vocabulary: 百年袁家：袁世凯及杨氏夫人后裔百年家族史

• chá yuècha2 yue4查阅x1 | Book Rank #16951to consult; to refer to; to look sth up in a reference source
• chá zhèngcha2 zheng4查证x1 | Book Rank #16952to check; to verify
• jǐn yǐjin3 yi3谨以x1 | Book Rank #16953