obligation
obligation
noun
day of obligation
obligational
adjective
语源
noun
- an act or course of action to which a person is morally or legally bound; a duty or commitment
（道义，法律上的）义务（或）责任；承诺
[with infinitive]I have an obligation to look after her.
我有义务照顾她。
■[mass noun]the condition of being morally or legally bound to do something
（道义，法律上必须做某事的）约束
they are under no obligation to stick to the scheme.
他们不受必须恪守该方案的任何约束。
■a debt of gratitude for a service or favour
恩惠
she didn't want to be under an obligation to him.
她不想欠他的情。
day of obligation
- (in the Roman Catholic Church) a day on which all are required to attend Mass
（罗马天主教）所有的人都必须出席做弥撒的日子
obligational
adjective
语源
- Middle English (in the sense 'formal promise'): via Old French from Latin obligatio(n-), from the verb obligare (see oblige)
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考试词汇表
