Levin sat there, an expression of sadness on his face...莱文坐在那里，神情悲伤。Jack Levin of Northeastern University.]北大学的杰克列文博士这样说.Rick Levin : Well, he himself has spoken on this subject.理查德·莱温: 他自己提到过这件事.Your friend Dr. Levin he...
Levin sat there, an expression of sadness on his face.莱文坐在那里，神情悲伤。Your friend Dr. Levin helped straighten my thinking.你的朋友莱文大夫帮助我把思想澄清了.Rick Levin : Well, he himself has spoken on this subject.理查德·莱温: 他自己提到过这件事....