1 sentence

1. 这部系列电影已经成为了制片厂的摇钱树。

   zhè bù xì​liè diàn​yǐng yǐ​jīng chéng​wéi le zhì​piàn​chǎng de yáo​qián​shù.

   This film franchise has become a cash cow for the studio.

   Source: Dong Chinese Dictionary