blackboard是什么意思

双语用例

• Alice rubbed the blackboard clean for the teacher.

• She rubbed the sums off the blackboard for the teacher.

• I hate the scrape of chalk on a blackboard.

• The lecturer illustrated his point with a diagram on the blackboard.

• My daughter has a blackboard in her bedroom.

• But they also suggest that the blackboard may be located in the visual cortex (which might be taken as support for the depictive view).

• We began with a group training session : an example was given on the blackboard and the blank was filled in by the group.

• An object-oriented blackboard based approach for automated finite element modeling and analysis of multichip modules.