The top five ways to remove scratches from aluminum cases are summarized as follows:

　　方法一，使用油性筆

　　1. Use an oily pen

　　將油性筆輕輕涂抹在外殼上，然后用干凈的抹布輕輕擦拭，直至劃痕抹平為止。這種方法適用于輕微劃痕。

　　Gently apply the oily pen on the case, and then gently wipe it with a clean cloth until the scratches are leveled. This method is suitable for slight scratches.

　　方法二，使用抹布

　　2. Use a rag

　　將抹布放入溫水中浸泡一會兒，取出后用力揉搓，使抹布變硬，然后輕輕擦拭劃痕處。

　　Soak the rag in warm water for a while, remove it and knead it vigorously to make the rag hard, and then gently wipe the scratches.

　　方法三，使用抹布和清潔劑

　　3. Use rag and cleaner

　　將抹布放入清潔劑中浸泡一會兒，取出后輕輕擦拭劃痕處。

　　Soak the rag in the cleaner for a while, remove it and gently wipe the scratches.

　　方法四，使用沙拉油

　　4. Use salad oil

　　將沙拉油灑在劃痕處，用濕抹布輕輕揉搓，然后用干抹布擦拭干凈。

　　Sprinkle salad oil on the scratches, rub them gently with a wet rag, and then wipe them clean with a dry rag.

　　方法五，使用牙膏

　　5. Use toothpaste

　　牙膏中含有臘腸，可以擦拭劃痕。將一小把牙膏放在抹布上，然后輕輕擦拭劃痕處，再用干抹布擦拭干凈。

　　Toothpaste contains bacon, which can be used to wipe scratches. Put a small amount of toothpaste on the rag and gently wipe the scratches. Wipe them clean with a dry rag.