If sharks die off, you could have a food chain Whac-a-Mole, scientists say.

科学家说，如果鲨鱼灭绝，就会象“打地鼠”游戏一样引发食物链的崩溃。

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As a day-to-day essential, it will die off with the generation who read print newspapers.

作为一种日常必需品，它将随着阅读纸质报纸的一代人而消亡。

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As a day-to-day essential, it will die off with the generation who read print newspapers.

作为一种日常必需品，它将随着阅读纸质报纸的一代人而消亡。

youdao