您要查找的是不是：
- 难problem
- 属genus
- 为难make things difficult for
- 属的generic
- 难的hardy
- 很难very difficult
- 两难be in a dilemma
- 同属sibling
- 难过的sorry
- 从属的subordinative
- 难看的malformed
- 属牛be born in the year of cattle
- 不难It's no big deal.
- 英属维尔京群岛British Virgin Islands
- 万事开头难It is the first step that costs troublesome
- 种属kind; type; variety
- 难耐intolerability
- 大难catastrophe
- 洋甘菊属Matricaria
- 很难的helluva
