It's changing over time and it changes over different organs.

它会随着时而变化，在不同器官也会发生变化。

Acceleration is the rate the velocity changes over time.

加速是速率随着时改变。

But diets have changed over the years.

但多年来人们饮食发生了变化。

Has this changed for you over time?

对你有影响吗？

But some plastic materials change over time.

但是一些塑料材料会随着时而变化。

Crucially, those prices can change over time.

关键是，种价格会随时而起伏。

Have your hobbies changed over the years?

些年来你爱好有变化吗？

How has your style changed over the years?

你装扮风格在些年来有什么变化？

And that's changed a lot over time.

并且随时改变。

Here's how the levels changed over time.

是胃饥饿素水平随时增长变化情况。

And they don't change over your lifetime.

它们终其一生都不会改变。

Earth changed a lot over millions of years.

地球在数百万年里发生了很大变化。

But the expression has changed over the years.

但随着时，个短语发生了变化。

Brain images showed changes over a three-month period.

大脑图像显了三个月变化。

Words — like people — grow and change over time.

词语就像人一样，会随着时而成长和变化。

Populations change over time — they grow or shrink.

种群会随着时而变化——它们会增长或减少。

My motivation changed over the years.

多年来 我动机一直在变。

It is possible that those diets changed over time.

些饮食习惯可能会随着时发生改变。

The height of a mountain can change over time.

山峰高度会随着时而变化。

Has the town changed a lot over the years?

些年阳光镇变化大吗？