熏脏的

例句：

1. 1. The paint on the wall has a noticeable stain.
   墙上的油漆有明显的痕迹。
2. 2. The stain on his shirt is from a previous job.
   他衬衫上的污渍是之前的工作时留下的。
3. 3. The stain on the carpet is caused by spilled milk.
   地毯上的污渍是由牛奶溢出造成的。