[误] Please pay for the shoe oil for me. I\'ll pay back later.

　　[正] Please pay for the shoe polish for me. I\'ll pay back later.

　　注：鞋油的“油”不用 oil 表达，而要用 polish。polish 可以作“擦光剂”讲，也可以作“磨光，擦亮”讲，如：a desk with a high polish(表面光泽极好的书桌)。