该研究推测的另一种可能是低含量的酒精能刺激人体释放乙酰胆碱这是人脑中一种能促进学习和记忆的化学物质
Another possibility speculated by this study is that low levels of alcohol can stimulate the human body to release acetylcholine, a chemical substance in the human brain that promotes learning and memory
以上为机器翻译结果，长、整句建议使用 人工翻译 。