脱节

He confessed himself out of contact with the times.

他承认自己与时代脱节。

Her ideas have lost all relevance to the modern world.

她的想法与现代社会完全脱节。

The discussion method is time-consuming and tangental.

那种讨论方法既浪费时间又与正题脱节。

18(17) Inflorescence subtended by a broad, 2-keeled prophyll; rachilla internodes usually distinct and disarticulating.

花序被着以一宽阔的，2龙骨状；小穗轴节间通常清楚和脱节。