翻译：还好，我们在推出产品之前及时发现了一个瑕疵，并马上解决了问题。
Thankfully，we were found a defect and solved the problem in time before we launch the product.
参考翻译：Thankfully, we spotted a product defect in time and fixed it before the launch.
造句：有一次我笔记本电脑丢在了机场，幸运的是有人捡到了归还了我。
Once I lost my computer in the airport，thankfully，someone got it and return it to me.
副词：幸亏，幸运的是 和luckily，fortunately接近
