blackboard
UK/'blækbɒ:d/US
中考高考A2
释义
n.
A large dark board, usually mounted on a wall, written on with chalk
黑板（挂在墙上、用粉笔书写的深色大板）
词根拆分
原生英语black黑色，最暗的颜色，无光
+
board木板，桌子，提供膳食
=blackboard
black + board = 用粉笔写字的黑色板。完全透明：用颜色给这块板命名。
例句
- 1.
The teacher wrote the date on the blackboard.
老师把日期写在黑板上。
- 2.
Chalk dust covered the bottom of the blackboard.
粉笔灰落满了黑板下缘。