机不可失,失不再来 jī bù kě shī , shī bù zài lái

DEFINITIONS

  1. opportunity knocks but once (idiom)

CHARACTERS

机 jī desk; machine; moment
不 bù no, not; un-; negative prefix
可 kě may, can, -able; possibly
失 shī lose; make mistake, neglect
失 shī lose; make mistake, neglect
不 bù no, not; un-; negative prefix
再 zài again, twice, re-
来 lái come, coming; return, returning