“不发达”用英语怎么说？

人的脑垂体中间部是不发达的.In humans, the pars intermedia is a rudimentary region.这是一种不成熟, 或不发达首歌, 一首歌的婴儿.It's an immature, or underdeveloped song, a baby song.这项工程将覆盖中国的农村和不发达地区.The project will encompass rural and underdevelop...

“不发达”的拼音为：bù fā dá...