2 sentences for 向上 (xiàng​shàng — improve)

1. 好好学习，天天向上。

   hǎo​hǎo xué​xí, tiān​tiān xiàng​shàng.

   Study hard and make progress every day.

   Source: Dong Chinese Dictionary

2. 这次运动会展现了运动员们积极向上的精神风貌。

   zhè cì yùn​dòng​huì zhǎn​xiàn le yùn​dòng​yuán men jī​jí xiàng​shàng de jīng​shén fēng​mào.

   This sports meet showcased the positive and upbeat spirit of the athletes.

   Source: Dong Chinese Dictionary