Enclosing cover
[化] 轮盖
🧩 词语组成解析
v. （用墙、篱笆等）把…围起来( enclose的现在分词 ); 把…装入信封; 附入; （尤指墙、篱笆等 ）围住
🗣️ 情景例句
You won't believe this,
简直不会相信，
I don't know for sure.
我不能肯定。
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。