heart stain

例句：

1. 1. The old painting on the wall has a heart stain that makes it look even more antique.
   墙上的旧画有一颗心渍，让它看起来更古老。
2. 2.The detective found a heart stain on the victim's shirt that matched the blood type of the murderer.
   侦探在受害者的衬衫上发现了一个心渍，与凶手的血型相匹配。
3. 3. The artist used a special paint to create a heart stain that perfectly complemented the surrounding colors.
   艺术家使用一种特殊的颜料来创造一个完美的心渍，完美地衬托了周围的色彩。