thankfully

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 spotted a product defect in time and fixed it before the launch.

Thankfully, I reviewed the previous study so that I could establish my own theory. 幸亏回顾了前人研究，我才能建立起自己的理论。