learn...by oneself是什么意思?

learn...by oneself是什么意思? “learn by oneself English”和“learn English by oneself”哪个是对的? 英语翻译：learn by oneself English learn by oneself 同意词? sb learn sth by oneself造句2个 to oneself,by oneself,for oneself用法这3个词组的用法和区别是? learn sth（by) oneself中的不要什么时候by可省去请举例句 john wants to learn Chinese by himself 的同义句是什么?learn……by oneself 的同义词组是什么 teach oneself sth=learn oneself sth? 自学除了 learn by oneself 还能怎么说?举个句子吧最好 for oneself是否是”独自,一个人”的意思?如果是,它和by oneself如何区分? 用by oneself造句 all by oneself造句 all by oneself 造句 all by oneself是什么意思 made by oneself是什么意思 on oneself & by oneself有什么区别 for oneself ,by oneself ,of oneself的区别