1.alone做形容词时,意思为“独自的,单独的”,只能做表语；做副词时意思为“独自,单独”例如：Her parents were dead and she was along.(她父母双亡,她孤身一人.)2.lonely做形容词意思为“孤独的,寂寞的,偏僻的,荒凉...