But there's still questions about it's long term effects.

但仍然存在长期效应的问题。

Now they've got the long term flooding effects of this particular Tropical Depression Florence.

如今将要遭受热带气旋“弗洛伦斯”带来的长久性洪涝灾害。

That's why researchers often find it's so hard to study the long term effects of the diet.

这就是研究人员经常发现很难研究饮食的长期影响的原因。

And sometimes it has those can have really long term effects and someone won't function the same at all afterwards.

有时它会产生真正的长期影响，并且此后某人的功能将完全不同。

Finally, it's true that we don't really know the long term effects of iron fertilization on ocean ecosystems.

最后，我们确实不知道铁肥对海洋生态系统的长期影响。