fledging mature无经验的
Fledging Swallon小燕子
fledging g小鸟
fledging rate出飞率
Fledging birds幼鸟
fledging - molt长羽毛;脱毛
in a fledging period处于起步阶段
post-fledging period出飞后期
a fledging dotcom一家刚起步的网络公司
V（动词） to feed and care for (a young bird) until it is able to fly 养(小鸟)到能飞