Correct

不蔓不枝

/ bù mán bù zhī /
Strokes

Example

Definition

(of lotus stems) neither sprawling about nor branching out—(of a piece of writing) succinct and to the point; concise

1
Zhè
piān
lùnwén
论文
mánzhī
不蔓不枝
  
,
xiě
de
hěn
jīngcǎi
精彩
  

This essay is well written with succinct arguments.