2 sentences

1. 汽车正在缓慢地向后倒退。

   qì​chē zhèng​zài huǎn​màn de xiàng hòu dào​tuì.

   The car is slowly backing up.

   Source: Dong Chinese Dictionary

2. 如果不努力，你的成绩就会倒退。

   rú​guǒ bù nǔ​lì, nǐ de chéng​jì jiù huì dào​tuì.

   If you don't work hard, your grades will slip.

   Source: Dong Chinese Dictionary