homework---BBC Learning English:Why do people like sad music?
1.hormone
Defintion: Any of various chemicals made by living cells that influence the development, growth, sex, etc. of an animal and are carried around the body in the blood.
Example: A hormone is a natural chemical in our bodies which can have an effect on various systems and also emotions.
2.lactation
Defintion: The process in which a woman or female animal produces milk.
Example: The breasts contain a number of specialized cell types that work together to allow lactation.
3.circumstances
Defintion: A fact or event that makes a situation the way it is.
Example: We oppose capital punishment under any circumstances.
Defintion: Any of various chemicals made by living cells that influence the development, growth, sex, etc. of an animal and are carried around the body in the blood.
Example: A hormone is a natural chemical in our bodies which can have an effect on various systems and also emotions.
2.lactation
Defintion: The process in which a woman or female animal produces milk.
Example: The breasts contain a number of specialized cell types that work together to allow lactation.
3.circumstances
Defintion: A fact or event that makes a situation the way it is.
Example: We oppose capital punishment under any circumstances.
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