Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/752d0dda44989611df78d1a13f67e95e.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 serotonin英英字典_serotonin剑桥英语解释_serotonin柯林斯英文解释_沉淀汉英词典
1. N-UNCOUNTSerotonin is a chemical produced naturally in your brain that affects the way you feel, for example, making you feel happier, calmer, or less hungry. 血清素