1. The nudicaul leaves of certain cacti store water for long periods of drought.
某些仙人掌的裸茎叶子能长时间储存水分，以应对干旱。

2. The nudicaul stems of alpine plants are adapted to survive in harsh mountain environments.
高山植物的无叶茎适应了恶劣的山地环境，能够存活下来。