This is the 3881st most frequent Chinese word.
一线
"一线" means "frontline" or "top-tier."
In this sentence, '一线' is used to describe 'first-tier' cities, indicating their advanced status or level compared to other cities.
政府出台了一系列政策,试图促使一线城市的房价回归稳定。
The government has implemented a series of policies trying to stabilize the housing prices in first-tier cities.
Here, '一线' means 'front line,' referring to the forefront location in a situation, like rescue or battle efforts.
在那次突发事件中,他始终坚守在救援的一线。
During the emergency, he continuously held his position on the front line of the rescue.
In this context, '一线' figuratively represents primary or foremost importance, highlighting priority.