Underdeveloping
v. （使）发展不完全, （使）显影不足( underdevelop的现在分词 )
🗣️ 情景例句
I'm going to the library to do some research.
我要去图书馆搞些调研。
Come and see me when you have time.
有空时请过来。
With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.
毫无疑问，经过练习，我最终能够学会笔不动而纸动来写字。