shí / yù / tū / rán / xià / jiàng / yǒu / shí / shì / shēn / tǐ / chū / xiàn / wèn / tí / de / xiān / zhào

食欲突然下降有时是身体出现问题的先兆。

A sudden loss of appetite can sometimes be an omen of a health problem.