proof
B2高频 NGSL-3英 /pruːf/美 /pruːf/
释义
noun
证据
information, documents, etc. that show that something is true
“conclusive/definitive/scientific proof”
真实视频例句
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“And further proof that Langley was motivated by the wrong thing: the day the Wright brothers took flight, he quit.”
更有力的证据表明兰利的动机错了：就在莱特兄弟起飞的那天，他辞职了。
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