我们将脑素和大分子蛋白质从化学上结合起来,把它注射给豚鼠或兔.We inject guinea pigs or rabbits with enkephalins that are chemically coupled to large proteins....

“脑素”的英语可以翻译为：[化] cerebrin ...

“类脑素”的英语可以翻译为：[医] homocerebrin ...