形容词
中文翻译：Unknown
同义词：
['compulsory', 'mandatory', 'obligatory例句：1. The government has issued an obligatory quarantine order for the affected area.（政府已对受影响地区发布强制性隔离令。）2. The teacher insisted that all students take part in the obligatory class meeting.（老师坚持要求所有学生参加强制性的班会。）3. He felt obliged to help his friend out of a difficult situation.（他感到有义务帮助朋友摆脱困境。）']
例句：
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1. The government has issued an obligatory quarantine order for the affected area.
政府已对受影响地区发布强制性隔离令。
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2. The teacher insisted that all students take part in the obligatory class meeting.
老师坚持要求所有学生参加强制性的班会。
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3. He felt obliged to help his friend out of a difficult situation.
他感到有义务帮助朋友摆脱困境。