The degree adverbs 更 gèng or 还 hái may be placed before the adjective for emphasis, with the optional use of the particle 呢 ne at the end of the sentence:
玫瑰花比茉莉花还香(呢)。
Méi guī huā bǐ mò lì huā hái xiāng (ne)。
Roses smell even sweeter than jasmine.
这个故事比那个故事更有趣(呢)。
Zhè gè gù shì bǐ nà gè gù shì gèng yǒu qù (ne)。
This story is even more interesting than that one.
[1] Yip, P. C., Rimmington, D., Xiaoming, Z., & Henson, R. (2009). Basic Chinese: a grammar and workbook. Taylor & Francis.