造纸业

gāi shì chéng wéi le zào zhǐ yè de zhōng xīn

该市成为了造纸业的中心。

The city became a centre for the paper industry.

zào zhǐ yè zài fán róng hé xiāo tiáo zhī jiān pái huái

造纸业在繁荣和萧条之间徘徊。

The paper industry has yo-yoed between boom and bust.