1 sentence

1. 如果不经常练习，你的语言能力会逐渐退化。

   rú​guǒ bù jīng​cháng liàn​xí, nǐ de yǔ​yán néng​lì huì zhú​jiàn tuì​huà.

   If you don't practice regularly, your language skills will gradually decline.

   Source: Dong Chinese Dictionary