名词
中文翻译：门槛
同义词：
['limit', 'boundary例句：1. The new policy will have a threshold effect on the economy.（新政策将对经济产生门槛效应。）']
例句：
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1. The new policy will have a threshold effect on the economy.
新政策将对经济产生门槛效应。
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2. The temperature at the threshold of freezing is 0°C.
冰点温度是0°C。
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3.The company's sales have reached a threshold of $5 million.
公司的销售额已达到500万美元的门槛。