您要查找的是不是：
- 难problem
- 民族nationality
- 为难make things difficult for
- 民族的national
- 难的hardy
- 很难very difficult
- 民族团结national unity
- 两难be in a dilemma
- 游牧民族nomad
- 难过的sorry
- 民族精神ethos
- 民族学ethnonymics
- 难看的malformed
- 不难It's no big deal.
- 多民族multi-national
- 万事开头难It is the first step that costs troublesome
- 民族特色national characters
- 难耐intolerability
- 民族政策policy towards nationalities
- 大难catastrophe
