gōng / rén / bǎ / bīng / zhuān / fàng / jìn / bǎo / wēn / xiāng / lǐ / fáng / zhǐ / hǎi / xiān / biàn / zhì工人把冰砖放进保温箱里,防止海鲜变质。The workers put blocks of ice into the insulated box to keep the seafood from spoiling.