疆界的英文：
border
boundary

Borders between nations, between carriers, borders between products and between people and ideas are being dissolved.
国与国之间的疆界,运输公司之间的壁垒,产品之间的界限人员和思想之间的隔绝,都在消失之中。

The boundary is not clearly defined.
这疆界没有明确划定。

It has no border or caption.
它没有边框和标题。

There is a border of flowers round the lawn.
草坪的四周有狭长的花坛围绕。

There was a flower border beneath the wall.
墙脚处有一花坛。

a chaste border of conventionalized flowers.
一种界线简单的格式化语言。

This trail was roughly parallel to the border.
这条小路与边境线大致平行。

Boundary is used with administrative areas smaller than a state or country boundary
用于指行政区域,范围比国家小

An exact artificial boundary condition is obtained on a spherical boundary by a constructive method.
同样，采用构造法在球面上获得了精确的无反射人工边界条件。

There are no indecisive boundaries between the two opinions.
这两种意见界线分明。

The boundaries are clearly marked off on the map.
界线清清楚楚地在地图上标了出来。

Boundaries of the polygon may extend to infinity.
多角形的边界可以延伸到无穷远处。