3 sentences

1. 可能他的鞋底很光滑。

   kě​néng tā de xié​dǐ hěn guāng​huá.

   Maybe his shoes had smooth soles.

   Source: OpenSubtitles

2. 她正在灯下纳鞋底。

   tā zhèng​zài dēng xià nà xié​dǐ.

   She is stitching the soles of shoes under the lamp.

   Source: Dong Chinese Dictionary

3. 这双运动鞋的鞋底非常柔软。

   zhè shuāng yùn​dòng​xié de xié​dǐ fēi​cháng róu​ruǎn.

   The soles of these sneakers are very soft.

   Source: Dong Chinese Dictionary