一只普通的海豹。
Surfers are very common in California, and when a shark attack occurs there, it's usually because to a shark, a surfer looks like a seal-one of their common food sources-riding a wave.
在加利福尼亚随处可见冲浪者，如果鲨鱼在那袭击人通常是由于它把冲浪者看成一只在冲浪的海豹了—海豹是它们基本的食物来源。
This procedure is a practical case chop identification can be achieved by identifying common seal.
此程序是一印章识别实用案例，可以实现普通印章的识别。
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