1. How far back can you trace your family tree? 你的家谱可以追溯到多少代?
2. He is drawing his family tree. 他正在画他的家谱。
3. Like a family tree that you might use to trace back through generations of ancestors, only it's showing a family of genetically related languages instead of people. 就像你可以追溯祖先的家谱一样,它只是在显示与遗传相关的语言,而不是人类。
4. She could trace her family tree back to the 16th century. 她能把本族家谱追溯到16世纪。
5. A University of Muenster team drew up a marsupial family tree based on DNA. 明斯特大学的一个研究小组根据 DNA 绘制了一个有袋动物的族谱。