n.

1. 野猫；山猫
2. 暴戾的人
3. 冒险计划；靠不住的企业（或生意）
4. （只有火车头的）单机
5. 盲目开掘的油井

a.

1. （企业等）不可靠的；不可信的
2. （列车等）未获批准（或不按规定时间）行驶的；未经允许的

vi.

1. 盲目开掘油井

vt.

1. 盲目钻探

n.

1. a small Eurasian and African cat, typically grey with black markings and a bushy tail, believed to be the ancestor of the domestic cat. [Felis silvestris.]
   ▸a bobcat or other small felid.
2. a hot-tempered or ferocious person.
3. an exploratory oil well.

adj.

1. (of a strike) sudden and unofficial.
2. commercially unsound or risky.

v.