[jiè]
[名]
(相交的地方; 划分的界限) boundary
the boundary of a country; national boundary
国界
The boundary between Shanxi and Shaanxi is the Huanghe River.
山西和陕西以黄河为界。
(一定的范围) scope; extent
external world
外界
field of vision
眼界
(按职业、工作或性别等分成的范围) circles; world
all sections of the people; people of all walks of life
各界人士
world [circles] of literature and art
文艺界
press circles
新闻界
(大自然中动物、植物、矿物等的最大的类别)primary division; kingdom
the animal [vegetable, mineral] kingdom
动[植,矿] 物界
[地质](地层系统分类的最高一级, 相当于地质年代中的代) group
the Paleozoic group
古生界
[数] bound
upper [lower] bound
上[下]界