1 sentence

1. 一提到他喜欢的电影，他就滔滔不绝地讲个不停。

   yī tí​dào tā xǐ​huan de diàn​yǐng, tā jiù tāo​tāo​bù​jué de jiǎng gè bù​tíng.

   Once he starts talking about a movie he likes, he's a real chatterbox.

   Source: Dong Chinese Dictionary