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1、operational
（机器、设备等）正常运转的，可使用的
The whole system will be fully operational by December 1995.
整个系统到1995年12月将可全面投入使用。
操作上的；实施时的；运行中的
The nuclear industry was required to prove that every operational and safety aspect had been fully researched.
核工业被要求证明其在运营与安全各方面都进行过充分的研究。
2、shut down
(使)(工厂、公司等)关闭,歇业，停业
Smaller contractors had been forced to shut down.
规模较小的承包商已被迫歇业。
It is required by law to shut down banks which it regards as chronically short of capital.
法律规定资金长期短缺的银行必须关闭。
3、hostile
敌对的;不赞成的
Many people felt he would be hostile to the idea of foreign intervention.
很多人觉得他会反对外国干预的主意。
The West has gradually relaxed its hostile attitude to this influential state.
西方对这个颇具影响力的国家的敌视态度已逐渐缓和。
怀有敌意的;不友善的
Drinking may make a person feel relaxed and happy, or it may make her hostile, violent, or depressed.
喝酒可能让人感到放松和愉快，也可能让人变得不友善、暴力或阴郁。
The prisoner eyed him in hostile silence.
犯人一言不发，用充满敌意的目光打量着他。
（情况、形势等）不利的，恶劣的，造成阻碍的
some of the most hostile climatic conditions in the world.
世界上最恶劣的几种气候条件
If this round of talks fails, the world's trading environment is likely to become increasingly hostile.
如果这一轮谈判破裂了，世界贸易环境可能会变得越来越糟糕。
（战争中）敌方的，敌人的
The city is encircled by a hostile army.
该市被敌军包围了。
They were in hostile territory.
他们在敌方领土上。
4、insist
坚持;坚决认为(或主张、要求)
My family insisted that I should not give in, but stay and fight.
家里人坚持认为我不应让步,而应该留下来继续抗争。
She insisted on being present at all the interviews.
她坚持所有采访自己都要在场。
坚称;坚持说
The president insisted that he was acting out of compassion, not opportunism...
总统坚持说他如此做是出于同情而不是为了投机。
'It's not that difficult,' she insists...
“并没有那么困难,”她坚持说。
