obligation /ˌɒblɪˈɡeɪʃən/ n. 义务；职责；责任

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例句/词组:

Parents should fulfil the obligation to raise their children and do not make the children left-behind children in village

父母应该履行抚养孩子的责任，不要让他们变成留守儿童。

英语解释：

the state of being forced to do sth because it is your duty, or because of a law, etc.义务；职责；责任