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