a clear conception的用法和样例：
- They should have a clear conception of their duties as citizens.
- They should have a clear conception of their duties.
- Teachers should have a clear concept of what a multiracial society is.
- This paper educes the analysis and calculation principles forinformation security risk by introducing a clear concept model,so to provide theoretical guidance to information securityrisk assessment.
- In order to regulate the behavior of shipping parties, this paper tries to distinguish ship operator and ship manager in details inorder to help making a clear concept between them.
- The sky was a clear blue over our heads.