チェックアウトするべくロビーに降りたらLiu先生、Xi先生が待ち構えていた。お別れの挨拶と今後の交流についての相談だった。同済大学のエンブレムを感謝の印にいただいた。ありがとう来年も来ます。日本にも来てください待ってます。さようなら。When I went down to the lobby to check out, Professor Liu and Professor Xi were waiting for me.They said their farewells and we discussed future exchanges. He gave me the Tongji University emblem as a token of their appreciation. Thank you. I'll come again next year. Please come to Japan too. I'll be waiting for you. Goodbye.