添磚加瓦 [－砖－－]

Jyutping tim1 zyun1 gaa1 ngaa5
Pinyin tiān zhuān jiā wǎ

Definitions (CC-CEDICT)
  1. lit. contribute bricks and tiles for a building (idiom)
  2. fig. to do one's bit to help
Definitions (Wiktionary)
  1. phrase, idiomatic
    to contribute meagerly to a cause; to do one's bit
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）