At speeds above 50 mph, serious injuries dramatically increase.

驾车时速超过50英里时，重伤事故会急剧上升。

the construction of a dam which will dramatically alter the landscape.

会导致周围景观发生显著变化的水坝建设。

He tipped his head to one side and sighed dramatically.

他把头偏向一侧，重重地叹了口气。