| blackboard | A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools. Source: Websters Dictionary (01 Mar 1998) |
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| blackboard | sheet of slate |
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| blackboard | an eraser that removes chalk marks from blackboard |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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