chī / le / bù / xīn / xiān / de / hǎi / xiān / yǐ / hòu / jǐ / gè / rén / dōu / kāi / shǐ / zǒu / fù / zǎi

吃了不新鲜的海鲜以后，几个人都开始走腹仔。

After eating seafood that was not fresh, several people started having diarrhea.