这只幼鸟再过几天就能长齐羽毛并开始飞行了。
The baby bird will ___fledge in a few days and start flying.
这只小鸟已经羽翼丰满，可以独自飞翔了。
The little bird is now fully ___fledged and can fly on its own.
这些小鸟正在长羽毛，很快就能学会飞翔了。
The baby birds are ___fledging and will soon learn to fly.
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