Without constant migration of digital assets, a nightmare about the foreseeable future is what keeps historians up at night: a historical record that abruptly stops when digital replaces analog.
如果没有持续不断地迁移数字资产，历史学家们就会被一个关于未来的噩梦困扰：当数字技术取代模拟技术时，历史记录会突然中断。
What began as a small neighborhood gathering blossomed into a massive cultural event welcoming tens of thousands of people each year over nearly two decades before abruptly shutting down.
这个最初只是一个小社区聚会的活动，在近二十年的时间里逐渐发展成为一项吸引数万人参加的大型文化活动，但最终却突然关闭了。
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。