() an oil or gas well (= a deep hole in the ground) made in an area where oil or gas has not yet been found 盲目开掘的油井（或天然气井）；勘探井◆The company expects ten wildcats to be drilled this year. 公司预计今年将开掘十口勘探井。
a business or project that will probably not be financially successful 高风险的计划