幸运的是，这次医疗手术取得了极佳的效果。

___Happily, the medical procedure yielded excellent results.

对我们来说幸运的是，周末的天气非常适合野餐。

___Happily for us, the weekend weather turned out to be perfect for the picnic.

那份我们以为已经丢失的文件，幸运地从旧的备份驱动器里恢复了。

The document, which we thought was lost, was ___happily recovered from the old backup drive.