One of his first experiments after the telephone bettered the phonograph.他在发明电话后首次的一项实验中,改善了留声机的品质.He bettered his last year's record.他刷新了他去年的记录.As an account of adolescence it could hardly be bettered.作为描写青春期的书，它已几...
He bettered his last year's record.他刷新了他去年的记录.As an account of adolescence it could hardly be bettered.作为描写青春期的书，它已几臻完美。One of his first experiments after the telephone bettered the phonograph.他在发明电话后首次的一项实验中,改善了留声机...