The theory that groups of organisms change with passage of time, mainly as a result of natural selection, so that descendants differ morphologically and physiologically from their ancestors.
主要由于自然选择的结果，生物体群经历了阶段性的变化，使后代在形态和生理上都与它们的祖先有所不同的理论。
Partly the change has to do with the simple passage of time, refurbishing an aging display.
这次改变部分是纯粹由于年代久远，需要对老旧的展览物进行修缮保养。
But love will change its composition with the passage of time.
但是，爱的成分会在年月中改变。
Early symptoms can be like severe flu and change with the passage of time.
我写脑膜炎的早期症状较近似于严重流感并且会随着时光流逝而产生变化。
But love will change its composition with the passage of time.
但是，随着时光流转，爱的成分会有所改变。
Resource optimum population size don't occur drastically change with the passage of time, but economic optimum population size keep constantly increasing.
资源适度人口容量没有随着时间的推移而发生急剧地变化，经济适度人口容量却在不断地增加。
The sea does not change along with the passage of the time and its level does not rise or fall according to the amount of rain that fall. The greatest happiness is to live in the East sea.
大海不会随时间改变，水位高低也不会因下雨量的多少而升降，这是生活在东海的最大快乐。
You may unswervingly love or be loved by a person. But love will change its composition with the passage of time.
你也许永远爱一个人，或永远被一个人爱着，但是，爱的成分会在年月中改变。
With the passage of time and the change of light, the glowing background of the casement is constantly changing, sometimes bright, sometimes subtle.
圆形挂窗逐渐显出发光的几何纹路，当光照强度改变，光纹亦不断变幻，有时明亮，有时隐约含蓄。 挂窗中的置物隔板未与边框相连，如同静止悬浮般。
With the passage of time and the change of light, the glowing background of the casement is constantly changing, sometimes bright, sometimes subtle.
圆形挂窗逐渐显出发光的几何纹路，当光照强度改变，光纹亦不断变幻，有时明亮，有时隐约含蓄。 挂窗中的置物隔板未与边框相连，如同静止悬浮般。
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