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"Ella" is a pronoun which is often translated as "she", and "sin duda" is a phrase which is often translated as "without a doubt". Learn more about the difference between "ella" and "sin duda" below.
ella(
eh
-
yah
)A pronoun is a word that stands in for a noun (e.g., she).
c. it (things or animals)
Esa es mi casa. Detrás de ella hay un garaje.That's my house. Behind it, there's a garage.
sin duda(
seen
doo
-
dah
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. without a doubt
Ella es, sin duda, una de las pintoras más originales de nuestro tiempo.She is, without a doubt, one of the most original painters of our time.
b. without any doubt
Su novio es, sin duda, el más bello de todos.Her boyfriend is, without any doubt, the handsomest of them all.
c. undoubtedly
Este será, sin duda, un año de importantes cambios políticos.This will undoubtedly be a year of important political changes.