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

DEFINITIONS

  1. Opportunity knocks but once. (idiom)

CHARACTERS

机 jī
HSK 1
desk; machine; moment
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
时 shí
HSK 1
time, season; era, age, period
不 bù
HSK 1
no, not; un-; negative prefix
再 zài
HSK 1
again, twice, re-
来 lái
HSK 1
come, coming; return, returning