擦鞋 

Pinyin: cā xié 
Meaning：To clean the shoes
Sentence：他忙于擦鞋。He was busily employed in cleaning his shoes.

More: 

擦： 

Pinyin: cā
Meaning: Rub; wipe
Radical: 扌
Stokes: 17
Traditional: 擦
Common words/Phrase:
擦洗 [cā xǐ] 【scrub】
擦除 [cā chú] 【erasure】 
擦伤 [cā shāng] 【scratch】
擦肩而过 [cā jiān ér guò] 【brush past】

鞋： 

Pinyin: xié
Meaning: Shoe
Radical: 革
Stokes: 15
Traditional: 鞋
Common words/Phrase:
鞋子 [xié zi] 【shoes】 
鞋面 [xié miàn] 【vamp】
鞋带 [xié dài] 【bootlace; latchet】
鞋底 [xié dǐ] 【sole; tread】
鞋扣 [xié kòu] 【shoe-buckle】