noun🔗Share保守担当者, 維持者Someone who keeps or upholds something; a steward."He become the maintainer of the software project."彼はそのソフトウェアプロジェクトの保守担当者になった。joborganizationbusinesssocietygovernmentChat with AIVocabulary GamePractice Reading
noun🔗Shareメンテナンス担当者, 保守員A person who does maintenance work."The maintainers keep the school building clean and safe. "メンテナンス担当者は校舎を清潔で安全に保ちます。jobservicepersonworktechnicalmachineChat with AIVocabulary GamePractice Reading
noun🔗Share保定装置、リテーナー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. "歯列矯正を終えた後、歯科医は弟の歯をまっすぐに保つために、リテーナー（保定装置とも呼ばれる）を装着しました。medicinedevicebodyChat with AIVocabulary GamePractice Reading
