"史长青"是个多义词，它可以指史长青（影视演员）,史长青（山西长治医学院附属医院康复医学科主任）,史长青（上海大学法学院副教授）。
史长青：没有，基本上都能查清。
Shi Changqing: No. We basically can figure out all the cases.
史长青告诉我们，他们对食品的质检包括三个部分：第一，对原料和辅料的检查，包括所有添加剂。
Shi Changqing showed us that supervision of food safety involves three parts: first, the inspection of raw and auxiliary material, including all the additives.
史长青：一般现在的大型企业产品的追溯性比较强，从生产的批次就能查到产品是什么时候生产的。
Shi Changqing: For large food manufacturers, products are easily traced. We can find out when a product is produced by checking its batch number.
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