unusual animal behavior 动物行为异常
The following are examples of observed unusual animal behavior before major earthquakes occurred.
下面要说的人们在大地震之前观察到的动物的异常行为。
During the following month, in January 1975, thousands of reports of unusual animal behavior were received from the general area.
而在接下来的一个月，也就是1975年1月，当地就有数千个动物行为反常的事件发生。
The Chinese began to study systematically the unusual animal behavior, and the Haicheng earthquake of February 1975 was predicted successfully as early as in mid-December of 1974.
由于中国开始对动物异常行为进行系统的研究，1975年2月发生在海城地震早在1974年12月中旬就已被成功预测到。
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