綠樹成蔭 [绿树－荫]

Jyutping luk6 syu6 sing4 jam3
Pinyin lǜ shù chéng yīn

Definitions (CC-CEDICT)
  1. (of an area) to have trees with shade-giving foliage; (of a road) to be tree-lined
Definitions (Wiktionary)
  1. phrase, idiomatic
    to have many green leafy trees that form a pleasant shade