This is the 8117th most frequent Chinese word.
coast
The Chinese word for "coast" (海岸) means the land along the edge of a sea or ocean.
Here, 'coast' ('海岸线') refers to the geographical area's edge where the land meets the sea.
这条长长的公路沿海岸线延伸。
This long highway stretches along the coastline.
In this context, 'coast' translates metaphorically as '靠着', indicating minimal effort or reliance.
他在考试中靠着记忆的边缘成绩勉强及格。
He barely passed the exam by relying on the memory's edge.
Here, 'coast' ('海岸') is used to describe the shore area that the seagulls are navigating.