at beginning, I taught her some private lessons

来源: 于 2013-03-05 11:43:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

then she progressed so well (which totally shocked me) that  she was on her own soon after she started. Later she only once or twice needed my help when she was short of time.