To polish or shine one's shoes; to clean and make shoes look presentable.
面接の前に靴を磨くと印象が良くなる。
Polishing your shoes before an interview makes a good impression.
毎朝、彼は出かける前に靴を磨く習慣がある。
Every morning he has the habit of polishing his shoes before going out.
子供に靴を磨くことの大切さを教えた。
I taught the child the importance of polishing shoes.