ion blemish

例句：

1. 1. The old painting has several ion blemishes that need to be repaired.
   这幅旧画有几处斑点需要修复。
2. 2. She applied a spot remover to the stain on her shirt and it disappeared.
   她用去渍剂处理衬衫上的污渍，它消失了。
3. 3.The blemish on his face is caused by a minor accident.
   他脸上的斑点是由一次小事故引起的。