US and European officials will counter with their own demands.

美国和欧洲官员将用他们自己的要求进行反击。

In addition, environmental groups, scientists and tourists are all making their own demands.

此外，环保团体、科学家、游客对南极又都有着各自的需求。

Each case is different and has its own physical, mental and emotional demands.

每个病例都是不同的，每位患者都有自己的生理、心理和情感需求。

We have to, as Europeans, lay out our own demands and put ourselves in a position where we can make sure they're respected.

作为欧洲人，我们必须提出自己的要求，并将自己置于一个能够确保这些要求得到尊重的位置。

The idea is that some users may prefer to manage their own demand, cutting back on electricity usage when rates are high and shifting usage to times when rates are low.

这个想法是， 一些用户可能更愿意管理自己的需求，在电价高时减少用电量， 并在电费低时转移使用量。