最重要的道理是，失败和成功是同一枚硬币的两面。
The most important lesson is that failure and success are two sides of the same coin.
失败和成功一样能教会你东西，甚至更多。
You can learn as much from failure as you can from success. Maybe more.
下面的清单展示了失败和成功的telnet命令。
The following listings demonstrate what a failed and successful Telnet command should look like.
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