blackboard
A2
CET-4
初中
FREQ #21371
★☆☆☆☆
n. 黑板
发音
US
/ˈblækbɔɹd/
US
/ˈblækboɹd/
UK
/ˈblækbɔːd/
词形变化
blackboards
复数
blackboards
blackboarded
blackboarding
blackboards
三单
blackboarding
现在分词
blackboarded
过去式
blackboarded
过去分词
别名
board
教材释义与例句
名词
黑板
a board with a dark smooth surface, used in schools for writing on with chalk
He chalked out a design on the blackboard.
他用粉笔在黑板上勾划出一个图样。
She rubbed the exercises off the blackboard after class.
下课后她把习题从黑板上擦掉。
The teacher knocked on the blackboard to catch our attention.
老师敲了敲黑板以引起我们的注意。
释义与例句
n.
A2
-
1.
A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard.
黑板
乌板
v.
-
1.
To use a blackboard to assist in an informal discussion.
词汇关系
同义词 1
上位词 1
相关短语
词源
From black + board, because such surfaces were once typically made of black slate.
来源：wiktionary