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

　　方法一，使用油性笔

　　1. Use an oily pen

　　将油性笔轻轻涂抹在外壳上，然后用干净的抹布轻轻擦拭，直至划痕抹平为止。这种方法适用于轻微划痕。

　　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

　　将抹布放入温水中浸泡一会儿，取出后用力揉搓，使抹布变硬，然后轻轻擦拭划痕处。

　　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，使用抹布和清洁剂

　　3. Use rag and cleaner

　　将抹布放入清洁剂中浸泡一会儿，取出后轻轻擦拭划痕处。

　　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

　　将沙拉油洒在划痕处，用湿抹布轻轻揉搓，然后用干抹布擦拭干净。

　　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

　　牙膏中含有腊肠，可以擦拭划痕。将一小把牙膏放在抹布上，然后轻轻擦拭划痕处，再用干抹布擦拭干净。

　　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.