Unriddled
v. 解，阐明( unriddle的过去式和过去分词 )
🗣️ 情景例句
Nice weather today, isn't it?
天气不错，是吧？
What do you recommend?
你推荐什么？
for fear the agents of other firms should be able to trace the kind of research they are likely to be undertaking.
他们生怕别的公司的情报人员据此摸到他们可能要从事的某项科研项目。