What's the difference between "zizhi" and "zizi"?

Zizhi and zizi are both terms used to describe the sound of something releasing oil. However, they are not the same thing. Zizhi is the sound of a small amount of oil being released, while zizi is the sound of a larger amount of oil being released.

Oil is a liquid substance that is composed of one or more hydrocarbons. It is a type of hydrocarbon that is not polar, which means that it does not have a charged group on its molecule. The difference between oil and fats lies in the length of the carbon chains and the way they are connected. Oil is composed of short-chain hydrocarbons that are not highly branched.

The history of oil can be traced back to ancient times. The term "oil" originally referred to water, but it was later used to describe the liquid that was extracted from plants and animals. The word "oil" was used to describe both fat and other types of liquid. Today, it is used to describe any type of liquid, including water.