这是在世纪之交修建的。

It was built at the turn of the century.

《牛津词典》

她的祖先在世纪之交时来到了洛杉矶。

Her family came to Los Angeles at the turn of the century.

《柯林斯英汉双解大词典》

他们在世纪之交时逃往南美。

They fled to South America around the turn of the century.

《柯林斯英汉双解大词典》

For example, in terms of the atomic theory of matter, at the time at the turn of the Century, the understanding was that atoms were the most basic constituent of matter, meaning you couldn't break atoms up into anything smaller - that was it, you're done.

例如在原子理论中,在19，20世纪之交的时候,人们认为原子是,组成物质的最基本粒子,也就是说你不能,把原子再分割了,就这样了。

麻省理工公开课 - 化学原理课程节选