名词
中文翻译：约束
同义词：
['restriction', 'restriction', 'compulsion']
例句：
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1.The government's decision to impose a tax on cigarettes is a constraint on consumer spending.
政府决定对香烟征税，这限制了消费者的支出。
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2.The company's policy of not allowing employees to work overtime is a constraint on their productivity.
公司不允许员工加班的政策限制了他们的生产力。
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3. The constraint of time made it impossible for him to finish the project on time.
时间的约束使得他无法按时完成这个项目。