juvenile school

• 未成熟群； 幼年群

juvenile school的用法和样例：

例句

1. Juvenile Sarracenia can be raised in a terrarium under lights for two to three years before they need to join the adults and start the cycle of seasons.
   种在生态缸的未成熟的瓶子草，在两三年内会持续生长，然后才加入成熟瓶子草的行列，开始随著季节周期变化。