藍田生玉 [蓝－－－]

Jyutping laam4 tin4 sang1 juk6
Pinyin lán tián shēng yù

Definitions (Wiktionary)

phrase, idiomatic
outstanding children come from a prestigious family
(syn.) 蓝田出玉, 藍田出玉

Definitions (Kaifangcidian)