There's no need for him to change his story now.

他现在根本用不着改口。

Optimization has its limits though, and often what's needed for change is a process of discovery.

优化也有它的局限性，而改变通常需要一个发现的过程。

I need for the story to change.

我需要改变故事。

The family acknowledge the need for change.

【acknowledge】全家人都承认需要改变一下。

And Darwin figured, that was because there was no evolutionary need for them to change.

达尔文认为，那是因为它们没有进化的需要来改变。

On the other hand, this culture is often very slow to recognize the need for change, and even slower to react.

另一方面，这种文化经常认识不到变革的需要，甚至更加难以作出反应。

In conclusion, the dynamic nature of society has created the need for changes in the way of education.

总之，社会的动态本质创造了改变教育方式的必要性。

He also said the university understands the need for change on our campus and in our community around sexual assault awareness and prevention.

他还表示，学校已经意识到“有必要作出改变，提高性侵防范意识，增加预防措施。”

Most of the parties recognize the need for change but they disagree on fundamental questions about how to run the economy and whether there should be referendum on independece in Catalonia.

绝大多数党派打起了改革大旗，但在如何改善经济，以及是否就加泰罗尼亚独立举行公投等根本问题上存在分歧。

The word 'transition' is an excellent one to begin using and to understand because it helps us to talk about the need for change and the process of changing in a comfortable way.

“Transition”是一个很好的词，大家可以开始使用并了解它，因为它可以帮助我们以一种舒适的方式谈论改变的需要和改变的过程。