This is Professor Michael Rappa from North Carolina State University in Raleigh, North Carolina.

这里是Michael Rappa教授，来自位于北卡罗莱纳州的北卡州立大学。

youdao

This is Professor Michael Rappa from North Carolina State University in Raleigh, North Carolina.

这里是Michael Rappa教授，来自位于北卡罗莱纳州的北卡州立大学。

youdao