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1·I am afraid to buy counterfeit and shoddy products.

我担心买到假冒伪劣产品了。

2·Drug is a special commodity for the prevention and treatment of diseases and health insurance of people, so it is of most importance to prevent counterfeit and shoddy products.

药品是防病治病、保证人体健康的特殊商品，防止假冒伪劣药品的出现极为重要。