yī / shēng / shuō / ròu / jiǎn / cān / yù / néng / liàng / dài / xiè / dàn / bù / néng / bǎ / tā / dāng / chéng / jiǎn / féi / yào

医生说，肉碱参与能量代谢，但不能把它当成减肥药。

The doctor said that carnitine is involved in energy metabolism but should not be treated as a weight-loss drug.