In this lesson, you’ll learn useful vocabulary for nuts, seafood, milk etc that’ll come handy especially for persons with food allergies. 祸从口入 means to encounter misfortune (or in this case) to fall ill when an allergic person eats the wrong food. As the saying goes be careful of what we put in our mouths! HSK 4 - 出发 仔细 紧张 样子 HSK 5 - 海鲜 过敏 消化 毕竟 耽误