blackboard的意思

blackboard的意思 clean the blackboard的意思 the blackboard的中文意思 cone to the blackboard的意思 point to the blackboard的意思 blackboard什么意思 sally is cleaning the blackboard的中文意思 blackboard Please read the words on the blackboard.的中文意思是什么 if white chalk chalks white on a black blackboard,这句话的意思 please ciean the blackboard and writefor me.中文的意思是什么? in front of the blackboard there is big desk的意思