Unit1 blackboard blackboard 人教版四年级上册●年P版 blackboard blackboard b blackboard blackboard Unit1 ['blaekbo:d]n. blackboard classroom ban hei blackboard .0n1胸o 5S00 ctassroom classroom 黑板 Look at the blackboard. 【例】煮黑板 light iight light light lig light light light light light sroom Unit 1 My classroom [lat] deng 4年级斜体英语描红本