脱节

The discussion method is time-consuming and tangental.

那种讨论方法既浪费时又与正题脱。

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.

法与现代社会完全脱。

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

花序被着以一宽阔部分，2龙骨状；小穗通常清楚和脱。