Elle travaille tres dur.
The subject of the sentence: "The new teacher works very hard." is "teacher". Firstly identify the verb. The verb is "works". Ask who or what "works"? The answer is "teacher". the word "new" is an adjective. the words "hard" and "very" are both adverbs. "hard" aids our understanding of "works" and "very" aids our understanding of "hard".
(il) travaille dure
The french didn't like it very much because it was hard for them.
Because she works very hard for her money.
A reporter works very hard.
No they find it very hard to stop often!
He is a good footballer works hard but very hot headed.
Mary is a student who works hard
all year long
he has lots of breaks ..but he works very hard to get those breaks
It is very hard to keep current concerning Johnny Depp's homes. It is possible that he does have a home in the French Quarter.
"tu as travaillé très dur"