良机 Words — Dong Chinese Dictionary

liángjī

golden opportunity

错失良机 cuòshīliángjī to let a golden opportunity slip by

To miss a great opportunity; to fail to seize a good chance
坐失良机 zuòshīliángjī to let a golden opportunity slip by

to sit by and lose a good opportunity; to waste a chance through inaction
勿失良机 wùshīliángjī not to miss a good opportunity

not to miss a good opportunity; to make hay while the sun shines