1、
I saw and heard of many strange things of which I had hitherto been unaware.
许多奇事,则见所未见,闻所未闻.
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2、
This movie has some of the most amazing stunts you're ever likely to see.
这部电影里有一些可能是你见所未见、让人惊叹的特技。
《柯林斯高阶英汉双解学习词典》
3、
