自

己

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自（zì）：

1. means “since from” to describe time.

2.the same with “己（jǐ）”，means “oneself”, if you put them together, you get “自己（zì jǐ）”，自己 can be used after personal pronouns to form reflexive pronouns, such as “你自己，我自己，她/他自己，学生自己，老师们自己”.