Deed of appropriation
[经] 使用权证明书
🧩 词语组成解析
deed
[did]
n. 行为;行动;<律>契约;证书;
v. 立契转让;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
No smile, no surprise.
不笑 ，就不给你惊喜。
Could you do me a favor?
能请你帮个忙吗？
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。