Correct

长篇

/ chángpiān / 
Strokes

Definition

lengthy (report or speech)

Example

As an Adjective

long; full-length

1
Chángpiān
长篇
zhuànjì
传记

full-length biography

As a Noun

long literary piece [usu referring to a full-length novel]

2
Tā
他
yòu
又
chuàngzuò
创作
le
了
yī
一
bù
部
zhǎngpiān
长篇
  
。

He wrote another full-length novel.