保质期

例句

• guò过le了bǎo保zhì质qī期 。

  Past its shelf life.

• mǎi买shí食pǐn品shí时yí一dìng定yào要kàn看qīng清chǔ楚bǎo保zhì质qī期 。

  Always check the shelf life clearly when buying food.

用法