sleep during summer; "certain animals estivate" 同义词：aestivate,
例句与用法
1.
The dormant , inactive state of a hibernating or estivating animal 蛰伏：冬眠或夏蛰动物所处的休眠，迟缓状态。
2.
The ground squirrel of southern california both estivates and hibernates . this kind of little animals begin resting in july and sometimes remain this way until the following spring 南加利福尼亚的地松鼠既冬眠也夏眠。这种小动物在七月份就开始休眠了,有时会休眠到来年春天。
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