[zì xíng]
（自己做） by oneself
settle (the matter) by oneself
自行處理
make arrangements by oneself
自行安排
be designed and made by oneself
自行設計制造
decide policies on one's own
自行制定政策
（自動） of oneself; of one's own accord; voluntarily
come of itself
自行到來
The reactionaries will never, of their own accord, step down from the stage of history.
反動派決不會自行退出歷史舞臺。
[天] proper motion; self-powered
[地] auto-morphic