3 sentences

1. 跑下坡的最好方法是略前倾，采用短而快的步伐。

   pǎo xià​pō de zuì​hǎo fāng​fǎ shì lüè qián​qīng, cǎi​yòng duǎn ér kuài de bù​fá.

   The best way to run downhill is to lean forward slightly and take short, quick strides.

   Source: UM-Corpus: Education

2. 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

3. 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