脱节

He confessed himself out of contact with the times.

他承认自己与时代脱。

Her ideas have lost all relevance to the modern world.

她的想法与现代社会完全脱。

The discussion method is time-consuming and tangental.

那种讨论法浪费时又与正题脱。

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部分，2龙骨状；小穗通常清楚和脱。