Marlene couldn’t answer. Afterward, Arlene suggested talking to students instead of adding an eleventh (功能). Marlene's lightning tail knocked the (原型) card over when the judge asked about the queue.
Arlene caught it against (她的) spines, then wrote the question on the back. They interviewed people at the print shop and learned that the main problem was arriving after closing time. Their next (原型) did one thing: it showed the shop’s hours and last order time. It was less ambitious, (但是) students could tell them when they would use it.