obligation /ˌɔbliˈɡeiʃən/ n. ［c］ 义务，责任：a legal (moral) obligation 法律上(道德上)的义务；the obligation of good citizenship 好公民的义务［考句］ Parents have a legal obligation to ensure that children are provided with efficient education suitable to their age.家长有法律责任使自己的孩子受到与其年龄相适应的教育。