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形容词羽毛未丰的,未成熟的
1. 羽毛未丰的:fleckless 无斑点的 | fledgeless 羽毛未丰的 | fleshless 无肉体的
fledgeless的反义词
1. So far our country's land banking system is still in its fledgeless stage, and related research has not concluded with well-established theory.
由于我国土地储备制度在发展上还处于初期阶段,无论在理论上还是在实践上,对土地储备制度的研究均未形成成熟的理论体系。