Correct

清通

/ qīng tōng / 
Strokes

Example

As an Adjective

(of writing) clear and coherent; smooth; well-organized and flowing

1
Wénzhāng
文章
yào
要
xiě
写
de
得
qīngtōng
清通
  
,
bìxū
必须
xià
下
yī
一
pān
番
kǔgōng
苦功
  
。

You must work hard to achieve the unity and coherence in a piece of writing.