You don't need to use this data member anywhere in your serializable classes.
不需要在可序列化类中到处使用这个数据成员。
Note: Your child does not have to be a member to join classes.
注意：您的孩子不是会员也可以参加上课。
Just to join this new collective became a member of the first ten classes.
刚加入这个新的集体成为初一十班的一份子。
He is a member of lower classes.
他是下层社会的一员。
He is a member of lower classes.
他是下层社会的一员。
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