There are many different cycles in nature, such as the cycle of seasons.

A cycle is a series of events that repeat, such as the daily cycle of light and dark.

The time it takes for a cycle to repeat itself is its recycle.

To evolve (进化）means to change or improve over a period of time.

Life forms evolve because they have to adapt in order to survive.

A force of attraction brings two objects closer together, such as the force of gravity.

A force of repulsion (排斥力）pushes two objects away from each other, such as the force between two electrons.

Gravity is a force of attraction between two objects with mass.

To transform means to change from one form into another.

A transformation occurs when an object takes on a new appearance or structure.

Over a period of time, the process of evolution can transform the appearance of a species of life.

To inherit (继承）something means to get ti without having to ask or work for it.

A child from a very rich family may inherit a lot of money.

Eye and hair color are inherited traits.