| 单词 | natural boundary |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔BE〕The river formed a natural boundary between the two countries. 这条河在两个国家之间形成了一道自然分界线。朗文写作活用〔EDGE〕The Mississippi River forms a natural boundary between Iowa and Illinois. 密西西比河构成了艾奥瓦州和伊利诺伊州的天然分界线。朗文写作活用〔boundary〕The Mississippi River forms a natural boundary between Iowa and Illinois.密西西比河成了艾奥瓦州和伊利诺伊州的天然边界。朗文当代〔determine〕The river determines the natural boundary between the two countries.这条河流成为这两国间的天然边界线。21世纪英汉〔form〕The river formed a natural boundary between the two countries.这条河成了两国的自然边界。朗文当代〔natural〕The river forms a natural boundary between the two countries.这条河成了两国间天然的分界线。韦氏高阶 |
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