He says shark attacks increased during the past century for a good reason.

他说过去一个世纪里鲨鱼袭击事件的增加是有理由的。

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He says this has caused shark attacks to increase during the past century.

他说这也导致了上世纪鲨鱼攻击事件增加。

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He says this has caused shark attacks to increase during the past century.

他说这也导致了上世纪鲨鱼攻击事件增加。

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