on oneself 和 by oneself意思一样吗?

on oneself 和 by oneself意思一样吗? on oneself & by oneself on one's own,personally和by oneself那几个和by oneself意思相同的? by oneself ,on oneself,for oneself 和on one's own,by one's ow by oneself和on oneself有什么区别？ believe in oneself和believe oneself一样吗? by oneself 和 for oneself 的区别 by oneself能直接说oneself吗? by oneself/for oneself engoy oneself和feel oneself 意思? for oneself是否是”独自,一个人”的意思?如果是,它和by oneself如何区分? on ones own account 和by oneself有什么区别