名词
中文翻译：检查字符串
同义词：
['check digit', 'verification string']
例句：
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1.The password must include a check digit for security purposes.
为了安全起见，密码必须包含校验位。
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2. The software checks the data to ensure it's accurate before processing.
软件在处理数据之前会检查以确保其准确无误。
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3. The customer service representative checked the order and confirmed that it would be delivered by next week.
客户服务代表检查了订单，并确认下周将送达。