（通往…的）通道;门户
a place through which you have to go to get to a particular area
Manchester is known as the gateway to the north. 曼彻斯特被称作通往英格兰北部的门户。
Whatever you think of it, Heathrow is a gateway to Britain and as such, should be welcoming and attractive.
When it opened, this London railway station was seen as Britain's gateway to Europe.
This area of Central California is often called the gateway to Yosemite.
Ushuaia is described as the gateway to Antarctica.
See also: gateway