A：There is a layer of dirt on your shoes. You ought to clean them and then polish your shoes with shoe polish.
你的鞋上有一层尘土。你应该先把鞋弄干净，然后用鞋油擦鞋。
B：But where is the shoe polish?
可是鞋油在哪儿呢？
dirt /d??t/ n. 尘土，泥土，灰尘
■ polish 既有名词词性又有动词词性，当其作动词讲时意为“擦亮，抛光，润饰”。例如：polish the furniture（擦亮家具），polish an article（给文章润色）。
把多余的鞋油擦掉 wipe up the surplus shoe polish