不蔓不枝 [－－－－]

Jyutping bat1 maan6 bat1 zi1
Pinyin bù màn bù zhī

Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    succinct and to the point; written in a pithy and smooth style; concise (of an article, speech, etc.)
    (syn.) 不枝不蔓