2 sentences

1. 什么时候事情开始走下坡路的？

   shén​me​shí​hou shì​qing kāi​shǐ zǒu xià​pō​lù de?

   When did things start going downhill?

   Source: CCMatrix

2. 他的职业生涯就开始走下坡路了。

   tā de zhí​yè shēng​yá jiù kāi​shǐ zǒu xià​pō​lù le.

   His career started going downhill.

   Source: CCMatrix