1. The fledgy bird struggled to maintain balance while attempting its first flight.
这只才开始飞的鸟在试图进行第一次飞行时努力保持平衡。

2. The fledgy leaves on the tree gave a vibrant and fresh appearance to the garden.
树上嫩叶的出现使花园呈现出充满活力和新鲜的外观。