名词
中文翻译：Unknown
同义词：
['variable range', 'variable region', 'variable zone']
例句：
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1. In the variable zone, the temperature can fluctuate greatly.
在变数区，温度可以有很大的波动。
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2. The scientist studied the behavior of animals in the variable zone.
这位科学家研究了动物在变数区的行为。
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3. The weather forecaster warned about the potential for extreme weather events in the variable zone.
天气预报员警告说，变数区有可能发生极端天气事件。