one·self
pronoun/wʌnˈself/
/wʌnˈself/
(formal)Idioms - (the reflexive form of one) used as the object of a verb or preposition when ‘one’ is the subject of the verb or is understood as the subject
（one 作动词的主语时，oneself 作动词或介词的宾语）自己，自身 - One has to ask oneself what the purpose of the exercise is.
大家必须问一问自己，这个锻炼的目的是什么。 - One cannot choose freedom for oneself without choosing it for others.
人不能光为了自己的自由而不顾别人的自由。 - It is difficult to make oneself concentrate for long periods.
让自己长时间聚精会神是很困难的。
- One has to ask oneself what the purpose of the exercise is.
- used to emphasize one
（用以强调 one）亲自，自己 - One likes to do it oneself.
人都喜欢亲自去做。
One and oneself are very formal words and now sound old-fashioned. It is much more usual to use you and yourself for referring to people in general and I and myself when the speaker is referring to himself or herself. - One likes to do it oneself.
Idioms
be oneself
- to be in a normal state of body and mind, not influenced by other people
身心自在；怡然自得 - One needs space to be oneself.
人要有空间才能怡然自得。
- One needs space to be oneself.
(all) by oneself
- alone; without anyone else
（你／你们）独自，单独 - Meditating by oneself is also beneficial.
自己冥想也有好处。
- Meditating by oneself is also beneficial.
- without help
（某人）独立地 - Trying to manage all these changes by oneself is no good.
试图独自应对所有这些变化是没有好处的。
- Trying to manage all these changes by oneself is no good.
(all) to oneself
- not shared with anyone
独享的；独自拥有的 - Performance, even privately to oneself, is an art.
表演，即使是私下里的表演，也是一门艺术。
- Performance, even privately to oneself, is an art.