请教各位先进， 在The Gilded Age镀金年代第3集Face the Music里， Ada Brook和姪女Marian Brook去听演讲， 遇到Ada Brook的旧识Cornelius Eckhard III。 Ada: I thought it was you. Cornelius: I'm afraid it's been too many years for me to call you Ada? Marian: But this is too touching. Ada: Oh, not really. We knew each other when we were young in Pennsylvania. 请问Marian说的but在这个情镜下是作何解呢？ 查了字典几乎都只把but解作转折， 但这里不似转折。 谢谢！