yī / shēng / jiàn / yì / tā / zuò / yí / cì / nǎo / diàn / tú / yǐ / jiǎn / chá / shuì / mián / wèn / tí

医生建议他做一次脑电图，以检查睡眠问题。

The doctor recommended an EEG to check his sleep problems.