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。

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

youdao

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。

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

youdao