Correct

千载难逢

/ qiān zǎi nán féng /
Strokes

Definition

extremely rare (idiom)/once in a blue moon

Example

Definition

not occurring once in a thousand years; very rare; once in a blue moon

1
Zhè
shì
qiānzǎinánféng
千载难逢
de
huì
机会
  
Yàoshi
要是
shī
失去
jiù
tài
可惜
le
  
!

This is a once-in-a-life-time opportunity. It'd be a great pity if you let it slip through your fingers!

2
Qiānzǎinánféng
千载难逢
de
huì
机会

chance of a lifetime; golden opportunity