fledge
verb [ I ] biology uk/fledʒ/ us/fledʒ/
(幼鸟)长出飞羽,变得羽翼丰满
(of a young bird) to grow feathers and learn to fly
The chicks are expected to fledge in August. 这些幼鸟预计到了八月份就会羽翼丰满,能够飞翔了。
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