遮天蔽日 [－－－－]

Jyutping ze1 tin1 bai3 jat6
Pinyin zhē tiān bì rì

Definitions (CC-CEDICT)
  1. lit. hiding the sky and covering the earth (idiom); fig. earth-shattering
  2. omnipresent
  3. of universal importance
Definitions (Wiktionary)
  1. phrase, idiomatic
    extremely strong and vast