Opera reached its zenith at the turn of the century.

歌剧在本世纪初达到了它的顶峰。

The Delors Commission between 1985 and 1994 marked the zenith of this sort of integrationist zeal.

1985年到1994年的德洛尔委员会标志着这高涨的主张取隔离热情的顶峰。