1pen 钢笔2pencil 铅笔3ballpen原珠笔4pencilbox钢笔盒5schoolbag书包6rubber橡皮泥7eraser橡皮8ruler直尺9angle ruler角尺10graphometer半圆仪11desk lamp台灯12brush pen 毛笔13paint油墨14paper纸15computer 电脑16dictionary词典17drawing board画板18 blackboard黑板19tube试管20correction fluid修正液。