operative

🇬🇧/ˈɒpərətɪv/ 🇺🇸/ˈɑːpərətɪv/📚 10565 62 2六级GRE托福
A system or service that is operative is working or having an effect. (系统、服务) 起作用的

adjective [原级]运转正常的,有效的;手术的;(词)最重要的,关键的

The commercial telephone service was no longer operative.
商业电话服务不起作用了。

noun [专属名词]技工,工人;密探,(尤指政府的)特工人员

In an automated car plant there is not a human operative to be seen.
在全自动汽车制造厂,一个工人也看不到。

operative

-tive ⌜ 具有...性质的 - having the quality or tendency of ~ ⌟
oper(做) + ative → 在做的 → 实施的
单词造句:
网友用“Operative”造句精选
Naturally the CIA wants to protect its operatives. 中央情报局当然想保护自己的特工人员。
As long as the operative word is "greed," you can't count on people keeping the costs down. 只要关键词是“贪婪”,你就不能指望人们降低开销。
This law becomes operative immediately. 本法规即时生效。
The station will be fully operative again in January. 该站将于一月份全部恢复运营。
I was in love with her—'was' being the operative word. 在I was in love with her这句话中,was是关键词。