| 单词 | boundary |
| 释义 | boundaryboundariesboundaryboundary /ˈbaʊndəri/ noun [countable] (plural boundaries)1the line that marks the edge of an area of land ➔ borderboundary betweenThe Ohio River forms a natural boundary between Ohio and Kentucky.form 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。2the limit of what is acceptable or thought to be possibleboundary ofthe boundaries of human knowledgeboundary 人类知识的范围 |
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