by oneself:独自;靠自己;不借助他人(常用来强调“一个人”或“没有帮助地完成某事”)。口语中也常用 on one’s own 表达相近意思。
/baɪ wʌnˈsɛlf/
I stayed at home by myself.
我一个人待在家里。
She built the entire website by herself, learning everything from scratch.
她完全靠自己把整个网站做出来了,从零开始学习所有东西。
该短语由介词短语 by(在这里有“通过、凭借、依靠”的含义)+ 反身代词 oneself 组成,用来强调动作是独立完成或处于独处状态。在实际使用中常随人称变化为 by myself / yourself / himself / herself / ourselves / themselves。