yī / shēng / huái / yí / tā / gǎn / rǎn / le / dīng / xíng / gān / yán / jiàn / yì / tā / mǎ / shàng / zuò / jiǎn / chá

医生怀疑他感染了丁型肝炎，建议他马上做检查。

The doctor suspected that he had hepatitis D and advised him to get tested immediately.