yī / shēng / shuō / wǒ / shuì / mián / bù / hǎo / kě / yǐ / bǔ / chōng / sōng / guǒ / tǐ / sù医生说我睡眠不好可以补充松果体素。The doctor said I could take melatonin supplements if I have trouble sleeping.