他第一次尝试溜冰所作的努力失败了，但他在第二次尝试时便成功了。
His initial effort at skating was a failure, but he succeeded the second time that he tried.
在三月份经过几天排除故障之后，技术人员完成了了一些临时修复工作，并且在第二次尝试时，发现号没有问题升空。
After a few days of troubleshooting in March, technicians made some temporary fixes, and on a second attempt, Discovery lifted off without issue.
在三月份经过几天排除故障之后，技术人员完成了了一些临时修复工作，并且在第二次尝试时，发现号没有问题升空。
After a few days of troubleshooting in March, technicians made some temporary fixes, and on a second attempt, Discovery lifted off without issue.
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