描述发明与创意过程的表达 — 英语词汇题
题目
根据首字母提示及中文释义，补全下列与发明、创意过程相关的单词。1. The engineer drew a d______（图样；设计图）before building the new machine. 2. After many f______（失败；失败的事），the young inventor finally succeeded. 3. Scientists will e______（评估；评价）whether the new device works well.