The Romans buried the nails so deep that they would not be discovered for almost two millennia.
罗马人将这些钉子埋得如此之深，以至于它们几乎在两千年之后才被发现。
For millennia, the city's 4 lay unseen below some 13 feet of water.
数千年里，该城市的4未被发现，埋藏在约13英尺深的水下。
For millennia, we've known what we've known due to artifacts that have survived, often despite their original creators' neglect.
在数千年的时间里，我们所知道的一切都是通过那些得以保存下来的文物，而这些文物往往即使在原作者忽视的情况下也依然留存下来。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。