wèi le / yán cháng / shí pǐn / de / bǎo zhì qī / chǎng jiā / zài / pèi fāng / zhōng / jiā rù / le / shǎo liàng / hé guī / de / tiān jiā wù

为了延长食品的保质期，厂家在配方中加入了少量合规的添加物。

To extend the food's shelf life, the manufacturer added a small amount of compliant additive.