动词短语
中文翻译：将某人置于义务之下
同义词：
['make someone liable to', 'make someone responsible for', 'impose a duty on']
例句：
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1. If you break the law, you will be put under an obligation to pay fines.
如果你违法，你将被要求支付罚款。
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2. The company was put under an obligation to provide training for all employees.
公司被要求为所有员工提供培训。
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3.The government has put under an obligation to improve public services.
政府被要求改善公共服务。