名词
中文翻译：取消系统
同义词：
['cancellation system', 'stoppage system']
例句：
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1.The call-off system was designed to prevent the spread of disease.
取消系统被设计用来防止疾病的传播。
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2. The company implemented a call-off system to improve efficiency.
该公司实施了一个取消系统来提高效率。
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3.The cancellation of the event was due to weather conditions.
由于天气条件，该活动的取消。