小测验：选择正确的单词

1. Something that flows out or forth;an effluence.
   流出或排出的物体;流出物
2. Let’s talk about something more specific.
   请说具体些好吗
3. There was something of uncertainty in his reply.
   他的答复有点含糊。
4. Something that serves as a guide or an example;a guideline.
   准则作为指导或榜样的东西
5. I felt something hard pressing against my side.
   我觉得有什么硬东西顶着我的腰。

　1个名词解释