adj.未说明的，不明确的

The cause of the accident remains unspecified.
事故的原因仍然未明确。
The job listing mentions an unspecified number of positions available.
招聘广告中提到有不确定数量的职位空缺。
The contract includes an unspecified amount of overtime work.
合同中包括了未具体说明的加班工作量。
The patient is suffering from an unspecified illness.
病人患有一种未明确定义的疾病。
The project's deadline is unspecified, causing much confusion among team members.
项目的截止日期未明确，导致团队成员感到困惑。
The company has allocated an unspecified budget for research and development.
公司为研发划拨了一笔未明确的预算。
The agreement contains an unspecified clause that could potentially affect both parties.
协议中包含了一个可能影响双方的未明确条款。
The guest speaker's topic was left unspecified, leaving the audience curious.
客座演讲者的话题未明确，让听众感到好奇。
The event's location is still unspecified, adding to the anticipation.
活动的地点尚未确定，增加了期待感。
The policy has an unspecified duration, making it difficult to plan long-term.
该政策的有效期未明确，使得长期规划变得困难。