機不可失，失不再來 jī bù kě shī ， shī bù zài lái

DEFINITIONS

  1. opportunity knocks but once (idiom)

CHARACTERS

機 jī machine; moment, chance
不 bù
HSK 1
no, not; un-; negative prefix
可 kě
HSK 2
may, can, -able; possibly
失 shī
HSK 4
lose; make mistake, neglect
失 shī
HSK 4
lose; make mistake, neglect
不 bù
HSK 1
no, not; un-; negative prefix
再 zài
HSK 1
again, twice, re-
來 lái come, coming; return, returning