blackboard
发音
How to pronounce blackboard in British English:
英 [ˈblækbɔːd]
How to pronounce blackboard in American English:
美 [ˈblækbɔːrd]
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- Noun:
- sheet of slate; for writing with chalk
单词词源
- blackboard (n.)
- 1823, from black + board (n.1). Blackboard jungle "inner-city school rife with juvenile delinquency" is from Evan Hunter's novel title (1954).
双语例句
- 1. The box itself opens up into a sort of blackboard .
- 2. Make lists of these words on the blackboard .
- 3. Teaching used to be conducted with a blackboard and a handful of tattered textbooks .
- 4. Outraged , he drew a hideous caricature and pinned it to the blackboard .
- 5. Parents watch their son draw chinese characters on a small blackboard in a child 's room .