/ˈbaʊndri ||; ˈbaυndrɪ/noun
[C] (pluralboundaries) a real or imagined line that marks the limits of sth and divides it from other places or things (真实或想象中的)界限,分界线:
The main road is the boundary between the two districts.这条大路是两区的分界。Scientists continue to push back the boundaries of human knowledge.科学家不断扩展人类知识的界限。☞Look at the note at border. 参看 border 的注释。
boundary/ˋbaUndərI; ˈbaʊnd$ri/n [C] plural boundaries 1 the line that marks the edge of an area of land [→ border] 分界线﹔边界: +between The Ohio River forms a natural boundary between Ohio and Kentucky. 俄亥俄河在俄亥俄州和肯塔基州之间形成了一道自然的边界。2 the limit of what is acceptable or thought to be possible 界限﹐限度: +of the boundaries of human knowledge 人类知识的范围