On your own 可以表示一个人、没有别人陪伴，也可以表示不靠别人帮助。第一种意思涉及陪伴：She lives on her own。第二种涉及帮助：I did the whole project on my own。物主代词随人称改变：on my own、on his own、on their own。
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on my/your/her own (= alone / without help); live/travel + on your own; do + something + on your own; by yourself
- She moved to London at nineteen and lived on her own for the first time.
- Our new colleague learned the booking software on his own in just two weeks.
- I've travelled on my own a lot, and I actually enjoy the freedom.
修改原因
修改前I fixed the washing machine by my own and saved some money.
修改后I fixed the washing machine on my own and saved some money.
句子把两个正确表达混在一起：by myself 和 on my own。两者都可以表示独自或没有帮助，但 by 搭配 myself，own 这个结构搭配 on。不能拼成 by my own。
On your own 只说明没有其他人在场，不直接说明感受。一个人因此难过、觉得孤独，则用 lonely：I live on my own, but I never feel lonely。By yourself 是意思相近的表达：I travelled by myself。
动手练习
My brother is only nine, so he can't stay at home ___ for the whole weekend.
查看答案
on his own — 这里说孩子在没有成年人陪伴的情况下留在家里，所以选 on his own。By his own 混合了 by himself 和 on his own，不是正确表达。
写一项没有参加课程、也没有老师指导而独立学会的技能。使用 on my own，说明学了什么，以及花了多久。
I learned to edit videos on my own, and it took me about three months.
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