1. 雏鸟：fledging 雏鸟 | fledgling 雏鸟 | fledgy 盖羽毛的

2. 无经验的人：200. flatterer: 谄媚者,奉承者. | 201. fledgling: 无经验的人. | 202. fop: 花花公子.

3. 獨立性雛鳥：flame spectrometry 焰光光譜分析 | fledgling 獨立性雛鳥 | flesh weight (去殼)肉重

4. 刚学飞的幼鸟,无经验的人：fecundity 肥沃,多产 | fledgling 刚学飞的幼鸟,无经验的人 | foreclose 排除,取消抵押品的赎回权

1. 刚长羽毛的小鸟;刚学飞的幼鸟
A fledgling is a young bird that has its feathers and is learning to fly.

2. 新手的;(组织或系统)新建的，没有经验的
You use fledgling to describe a person, organization, or system that is new or without experience.

e.g. ...the sound practical advice he gave to fledgling writers.
他给初出茅庐的作家提出的可靠实用的建议
e.g. ...Russia's fledgling democracy.
俄罗斯新兴的民主

noun

1. young bird that has just fledged or become capable of flying

Synonym: fledgeling

2. any new participant in some activity

Synonym: newcomerfledgelingstarterneophytefreshmannewbieentrant