primary source

primary source(
pray
-
meh
-
ri
 
sors
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. fuente primaria
Carbohydrates are the body's primary source of energy.Los carbohidratos son la fuente primaria de energía del cuerpo.
b. primera mano
Eileen used several old journals as her primary source of information for her study about the Great Depression.Eileen usó varios diarios antiguos para adquirir información de primera mano en su estudio sobre la Gran Depresión.
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