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某工地正在浇灌钢筋混凝土框架。安装模板时,发现缺一对楔子。木工张师傅临时画了张草图(见右图),交给徒弟小王。小王想了一阵,终于把木楔做出来了。你能画
A site is being filled with reinforced concrete frames. When the template was installed, a pair of wedges was missing. Master Zhang of the woodworking workshop drew a sketch (see right figure) and handed him over to apprentice Xiaowang. Xiao Wang thought for a while and finally made the wooden wedge. Can you draw