1 sentence for 保质期 (bǎo​zhì​qī — shelf life)

1. 我们把新鲜的肉类放进冰箱冷冻，以延长保质期。

   wǒ​men bǎ xīn​xiān de ròu​lèi fàng​jìn bīng​xiāng lěng​dòng, yǐ yán​cháng bǎo​zhì​qī.

   We put fresh meat in the freezer to extend its shelf life.

   Source: Dong Chinese Dictionary