They turned to one another with the same expression of dawning comprehension, surprise, and relief.
他们带着一样恍然大悟、惊奇、松了一口气的表情相互看了看。
《柯林斯英汉双解大词典》
3
This only applies to American space activities, but the hope is that it will help standardize a set of norms in the dawning commercial spaceflight industry throughout the world.