Blackboardblackboard [ˈblækbɔ:d]n.黑板blackboard ['blækbɔ:d] n.黑板例句:Who's rubbed my figures off the blackboard?谁把我写在黑板上的数字擦掉了?The blackboard is in the fron...
Blackboardblackboard [ˈblækbɔ:d]n.黑板blackboard ['blækbɔ:d] n.黑板例句:Who's rubbed my figures off the blackboard?谁把我写在黑板上的数字擦掉了?The blackboard is in the fron...