I presently perceived she was (what is vernacularly termed) _trailing_ Mrs. Dent; that is, playing on her ignorance--her _trail_ might be clever, but it was decidedly not good- natured.
En cambio, Miss Ingram entendía la materia y arrollaba a su interlocutora, gozándose en su ignorancia. Blanche podría ser inteligente, pero no era bondadosa.