Symmetry operations are geometrically defined ways of exchanging equivalent parts of a molecule.

We stood about exchanging a few pleasantries.

我们站在附近,说了几句打趣的话.

The general held a parley with the enemy about exchanging prisoners.

将军与敌人谈判交换战俘事宜.

The two girls sat in a corner exchanging confidences.

那两个女孩子坐在角落里说着悄悄话.

We sat exchanging puffs from that wild pipe of his.

我们坐在那里,轮番抽着他那支野里野气的烟斗.

He is exchanging intimacies with his friends.

他正在和密友们亲切地交谈.

After exchanging the usual pleasantries, they got down to serious discussion.

互致寒暄之后，他们便开始严肃的讨论了。

She heard Tom exchanging good-natured banter with Jane.

她听见汤姆和简互相打趣。

Why are the major oil exchanges in London and New York anyway?

为什么主要的石油交易所要建在伦敦和纽约呢?

On a global scale, these exchanges produce in the oceans the general circulation pattern.

在地球尺度上, 这些交换在海洋中产生一般的环流模式.

Each side undertakes to facilitate the further development of such contacts and exchanges.

双方各自承诺对进一步发展这种联系和交流提供便利.

Prices are variable according to the exchanges.

物价跟着汇率变动.

They undertook to promote exchanges and trade.

他们同意促进交流和贸易.

It was weird negotiation extending of occassionally heated exchanges.

这次谈判是不寻常的,有时交锋十分激烈.

It was an almost verbatim reply of many exchanges of previous years.

这种对话和前几年的多次对话几乎一字不差.

The order is out. No exchanges.

命令已经宣布 ---- 不交换.

We should take an active part in regional economic exchanges and cooperation.

积极参与区域经济交流和合作.

A decision by the Finns to float their currency sent a shudder through the foreign exchanges.

芬兰允许其货币自由浮动的决定在外汇市场上引起了震动。

The euro fell on the foreign exchanges yesterday.

欧元汇价昨天下跌。

There've been some bitter exchanges between the two groups.

两组之间发生过一些激烈的争吵。

On the foreign exchanges, the US dollar is up point forty-five.

在外汇交易中，美元上涨了0.45个百分点。