Mice that lack the receptor do not become dependent no matter how much cocaine they are given.
Mice that lack the receptor do not become dependent no matter how much cocaine they are given.
缺少这个受体的小鼠，无论服用过多少古柯硷，都不会上瘾。
Mice that lack the receptor do not become dependent no matter how much cocaine they are given.
缺少这个受体的小鼠，无论服用过多少古柯硷，都不会上瘾。