noun🔗Share维护者，管理者。 Someone who keeps or upholds something; a steward."He become the maintainer of the software project."他成为了这个软件项目的维护者和管理者。joborganizationbusinesssocietygovernmentChat with AIVocabulary GamePractice Reading
noun🔗Share维护人员，保养员 A person who does maintenance work."The maintainers keep the school building clean and safe. "维护人员负责保持学校建筑的清洁和安全。jobservicepersonworktechnicalmachineChat with AIVocabulary GamePractice Reading
noun🔗Share保持器 A device used to keep teeth in a given position."After getting his braces off, the dentist fitted my little brother with retainers, also called maintainers, to keep his teeth straight. "摘掉牙套后，牙医给我弟弟装了保持器，也就是位置保持器，来保持他的牙齿整齐。medicinedevicebodyChat with AIVocabulary GamePractice Reading
