父母与子女的关系确立，绝大多数基于血缘关系，这种关系            。有志者不嫌家贫，明理者不嫌母丑。（      ）

    This is a nature ____ .There is a  ____ and some  ____ in the sky.There are two  ____ flying in the sky.Look! There is a beautiful  ____ between the two ____ .There is a long  ____ on the grass.There are some  ____ on the grass. ____ a  ____ picture it is!

《水龙吟·次韵章质夫杨花词》这首词表达了诗人怎样的思想感情？