首先

The paper gives some last issues in group communication field and an asynchronous computer conference model, which is used to support informa tion sharing.

异步计算机会议模型的分析和改进丁伟，顾冠群（东南大学计算机科学与工程系南京210096）摘要本文首先介绍了群通信领域的发展近况和主要用于支持信息共享的异步计算机会议模型。

But at the same time, the development of economy is at a cost of the destruction of environment.

首先，世界范围内生态环境的不断恶化是技术性贸易壁垒持续发展的主要原因。20世纪以来，随着工业的高速发展和科学技术的进步，世界各国经济都不同程度的在原有基础上实现了很大的增长，同时人们的生活水平也得到和大幅度的提高，这是值得肯定的。

First, they must be one of the best at their position.

首先，他们必须是一个最好的，在他们的立场。

It begins at the moment of new birth.

它首先在新的时刻诞生。

At first blush, though it sounds reasonable, it's too vague.

首先脸红，虽然它听起来合理，但是它是太模糊了。

At first blush , that must be good .

首先来说，美元化看起来一定是个好事情。

It would seem, at first blush, that dollarization must be good.

首先来说，美元化看起来一定是个好事情。

Would seem, at first blush, that dollarization must be good.

首先来说，美元化看起来一定是个好事情。

I found out about it at first hand.

我是首先发现有关情况的。

At first we used hand tools.

首先我们使用手工工具。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。