• n. 义务；职责；债务

来自oblige,强迫，迫使，责任。

obligation (n.)

c. 1300, from Old French obligacion "obligation, duty, responsibility" (early 13c.) and directly from Latin obligationem (nominative obligatio) "an engaging or pledging," literally "a binding" (but rarely used in this sense), noun of action from past participle stem of obligare (see oblige). The notion is of binding with promises or by law or duty.

1. Co-operation was more than just an attractive option, it was an obligation.

合作不仅仅是诱人的选择，它也是一种责任。

来自柯林斯例句

2. They felt under no obligation to maintain their employees.

他们觉得没有义务为员工提供生活费。

来自柯林斯例句

3. When teachers assign homework, students usually feel an obligation to do it.

当老师布置家庭作业的时候，学生们通常觉得做作业是分内之事。

来自柯林斯例句

4. You are under no obligation to buy anything.

你不必非买什么东西不可。

来自《权威词典》

5. Every player is under an obligation to keep the rules.

每个选手都必须遵守这些规则.

来自《简明英汉词典》