红酒在白桌布上留下了永久的污渍。

The red wine ___stained the white tablecloth permanently.

如果不立即处理，番茄酱会让布料染上难以去除的污渍。

If not treated immediately, tomato sauce can ___stain fabrics terribly.

枕头上的暗红色污渍让他感到不安。

A dark red ___stain on the pillow made him uneasy.