Wèi / jué / chí / dùn / huì / ràng / rén / nán / yǐ / fēn / biàn / shí / wù / de / xīn / xiān / chéng / dù

味觉迟钝会让人难以分辨食物的新鲜程度。

A dull sense of taste can make it difficult to tell how fresh food is.