名词
中文翻译：交易授权
同义词：
['trade permission', 'trading permit']
例句：
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1.The company needs to obtain a trading authorization from the government before it can start trading.
该公司在开始交易之前，需要从政府获得交易授权。
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2. The trade authorization is valid for one year and must be renewed every year.
交易授权有效期为一年，每年必须重新申请。
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3. Without proper authorization, they were not allowed to enter the restricted area.
如果没有适当的授权，他们不被允许进入限制区域。