可惜的是，大部分Internet基础设施尚未针对目前大量使用comet流样式应用程序做好准备。
Sadly, most of the Internet infrastructure is not ready for prolific use of Comet streaming style applications today. Here are some of the reasons why I claim this.
实际上，我们尚未批准其中谈到的几个城市的项目，我们只是对此做好了系统上的准备而已。
Indeed, we have not yet approved the projects in the several cities referred, but made the systemic preparations for it only.
实际上，我们尚未批准其中谈到的几个城市的项目，我们只是对此做好了系统上的准备而已。
As a matter of fact, we have not yet approved the projects in the several cities referred to, but have made systemic preparations for it.
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