not fully developed

According to the report, China's innovation system is not fully developed and inadequately integrated.

报告指出，中国的创新系统没有得到充分发展，整合很不充分。

Stomata of the first leaf buds, scales leaf were not fully developed, stomata of the second leaf tent to mature. Stomata of the third leaf, the fourth leaf, fish leaf was mature.

芽下第一叶、鳞叶气孔器发育不完全，芽下第二叶气孔器发育趋向成熟、芽下第三叶、芽下第四叶、鱼叶气孔器发育成熟。

MJ: By now probably everyone has heard that the teen brain is not fully developed and that the frontal lobe-the part of the brain where we plan for the future and tackle questions that don't have black-and-white answers-does not reach full "maturity" until sometime during our 20s.

MJ：目前可能大家都知道这个事实——青少年的大脑并未发育完全，额叶（那个我们用来规划生活、解决问题、以及应对一些悬而未决的事情的部分）还没有完全成熟。到了20多岁才能真正算“发育成熟”。

The language was not fully developed in the early stages.

早期这种语言发展得并不完善.

Good papers will discuss ideas that may be controversial or not fully developed.

好的报告将讨论有争议的或者不完善的想法.

Therefore, ancient Chinese science and religion is not fully developed.

故而中国古代的科学与宗教也就得不到充分的发展.