zhè pī / dà mǐ / lǐ / hán yǒu / bù shǎo / hùn zá wù / xū yào / zǐ xì / shāi xuǎn

这批大米里含有不少混杂物，需要仔细筛选。

This batch of rice contains quite a few impurities and needs careful screening.