它巨大的叶子可长到直径2.5米长。一片发育完全的叶子可支撑一个孩子坐在其中央。

Its huge leaves grow to 2.5m in diameter, and a fully-grown leaf can support a little kid sitting in the center.

youdao

唯一一个没有发育完全的重要器官是他的肺。

The only major organ still not fully developed is his lungs.

youdao

别再敲你双胞胎弟弟那还没发育完全的柔软脑壳了！

Nale! Stop hitting your twin brother in his soft undeveloped baby skull!

youdao

That also happens through development, and in fact, it goes through development and even teenagers are not fully myelinated.

髓鞘的形成也同样发生在发展过程之中,实际上,髓鞘的形成贯穿整个发展过程,即便是青少年的髓鞘也并未完全发育完善

耶鲁公开课 - 心理学导论课程节选

In particular, they're not fully myelinated in their frontal lobes.

特别是他们额叶的髓鞘并未完全发育

耶鲁公开课 - 心理学导论课程节选