A:What are you going to do when you grow up?
B:I'm going to be a teacher.
A:A teacher? Then you must devote yourself to the education.
devote oneself to something
Devote oneself something的意思是“献身于某物，致力于某物”。
He has devoted himself to teaching since he graduated from the college in 1962.
He often devoted himself to reading.
The doctor devoted himself to the cure of cancer.
Because I have completely devoted myself to my family, I refuse to relocate for work and upend their lives.
Unfortunately, Molly seems to have devoted herself to a dubious nonprofit organization.