英语词汇无外援是什么意思，无外援的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	无外援
释义	DEFINITIVE EXAMPLES 权威例句The two explorers attempted an unaided walk across the South Pole.两个探险家尝试在无外援情况下穿越南极。剑桥国际
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