他出生在世纪之交。

He was born at ___the ___turn ___of ___the ___century.

许多技术进步发生在世纪之交左右。

Many technological advancements occurred around ___the ___turn ___of ___the ___century.

在世纪之交，社会经历了重大变化。

At ___the ___turn ___of ___the ___century, society underwent significant changes.