由于我参加了iOS 5 beta版的实验，因此我的操作系统上还安装了iTunes 10.5和Xcode 4.2的beta版。

Since I am experimenting with the iOS 5 beta I also had the iTunes 10.5 ad Xcode 4.2 beta versions installed on my system.

youdao

去安装和实验在相同的计算机上，我们不需要互联网连接。

To install and experiment on the same computer, we don't need Internet connection.

youdao

另一方面，安装和开始使用SQL Relay是如此地简单，并且它非常地高效和可靠，以至于它鼓励人们进行一些简单的实验。

On the other hand, it is so easy to install and begin to use SQL Relay, and it is so efficient and reliable, that it invites casual experimentation.

youdao