4 sentences

1. 他在政坛上的声势日益壮大。

   tā zài zhèng​tán shàng de shēng​shì rì​yì zhuàng​dà.

   His momentum in politics is growing day by day.

   Source: Dong Chinese Dictionary

2. 这笔资金通过滚动投资不断壮大。

   zhè bǐ zī​jīn tōng​guò gǔn​dòng tóu​zī bù​duàn zhuàng​dà.

   The fund continues to grow through rolling investments.

   Source: Dong Chinese Dictionary

3. 随着更多志愿者的加入，救援队伍不断壮大。

   suí​zhe gèng duō zhì​yuàn​zhě de jiā​rù, jiù​yuán duì​wǔ bù​duàn zhuàng​dà.

   With more volunteers joining, the rescue team continues to grow.

   Source: Dong Chinese Dictionary

4. 公司通过技术革新不断壮大自己的实力。

   gōng​sī tōng​guò jì​shù gé​xīn bù​duàn zhuàng​dà zì​jǐ de shí​lì.

   The company is constantly strengthening its power through technological innovation.

   Source: Dong Chinese Dictionary