boundary

border, bounds, boundary, frontier, limit

名词 boundary:

1. the line or plane indicating the limit or extent of something
   同义词：bound, bounds
2. a line determining the limits of an area
   同义词：edge, bound
3. the greatest possible degree of something
   同义词：limit, bound

1. The lane is the boundary of our land.
   那条小路就是我们这片地的界线。
2. The ball ran (ie rolled) to the boundary.
   球向著边线滚去。
3. They marked the boundaries of the football fields.
   他们画出了足球场地的边界。

bound.a.ry

n.（名词）
【复数】 bound.a.ries
Something that indicates a border or limit.
边界线：标识边界或范围的某物
The border or limit so indicated.
边界：这样标识出来的边界或范围

<参考词汇><同义词>boundary,border,frontier,limitThese nouns all denote a line or an area separating one piece of territory from another. A
所有这些名词都指分隔一地域与另一地域的线或地区。
boundary is a limiting line:
boundary 是限制线：
例句：
A stone wall marked the boundary between the two farms. A
石墙是两个农场的分界线。

border is a line that separates political entities:
Border 是将政治实体分离的界限：
例句：
Customs officers inspected our luggage when we crossed the border.
当我们过境时海关官员检查了我们的行李。

Frontier denotes the part of a country that faces toward or fronts an adjoining country:
Frontier 意指一国中朝向或面对邻国的部分：
例句：
.that long [Canadian] frontier from the Atlantic to the Pacific Oceans, guarded only by neighborly respect and honorable obligations. (Winston S. Churchill).
.那条 自大西洋至太平洋的长边界线， 仅出于邻国的尊敬和高尚义务守护着. （温斯顿·S·丘吉尔）。

Limit denotes a boundary that surrounds an area:
Limit 意指包围一地区的界线：
例句：
Cars cannot exceed 35 miles per hour within city limits.
在市区线以内车速不能超过每小时35英里