tā / tīng / wán / zhè / ge / wèn / tí / zhǐ / néng / miē / pū / yì / shēng / bù / zhī / dào / gāi / zěn / me / huí / dá

他听完这个问题，只能咩噗一声，不知道该怎么回答。

After hearing the question, he could only make a helpless sound because he did not know how to answer.