keep on doing sth which is unpleasant or difficult
"he persisted to call me every night"
"The child persisted and kept asking questions"
Luria persevered in searching for..the rewards.
出自: C. P. Snow
Parks persevered and eventually went on to a long and distinguished career.
出自: R. Whelan
My..sense of duty..makes me persevere with a book I don't really enjoy.
出自: Rosemary Manning