the process of training people or animals to behave in a way that others in the group think is suitable

Socialization is done at younger ages, with physical training when the dog's body is mature. 狗在年幼时进行合群训练，身体成熟时再进行体格锻炼。

Probably the most important aspect of a child's socialization process takes place during infancy. 儿童社会化过程中最重要的方面可能发生在婴儿期。