小鸟终于长大了英文怎么说

在英语中，当小鸟长大成为成年鸟时，可以使用一些表达来表示这个意思。一些可能的表达方式包括：

"The bird has matured."
"The bird is now fully grown."
"The bird has reached adulthood."

这些表达都表示小鸟已经长大并成为了成年鸟。

例句：

"When I first got this parakeet, it was just a pttle chick. Now it's fully grown and has a beautiful set of feathers."
"I remember when this sparrow was just a nestpng. Now it's all grown up and ready to fly the nest."

中文翻译：

"我刚买这只鹦鹉的时候，它只是一只小小的鸟儿。现在它已经长大成为成年鸟，有了一组漂亮的羽毛。"
"我还记得这只麻雀只是个幼崽。现在它已经长大成人，准备离开窝了。"