dog-ear

例句：

1. 1. I found this old book at the library with a dog-ear on it.
   我在图书馆发现了这本有狗头标记的旧书。
2. 2.The student used his dog-ear to mark important notes in his notebook.
   这位学生用他的狗头来在笔记本上标记重要的笔记。
3. 3. She was so excited that she couldn't wait to get her dog-earted copy of the novel.
   她非常兴奋，迫不及待地想要拿到她那本有狗头标记的小说。