- 锲而不舍 [qiè ér bù shě]
- keep on carving; chisel incessantly; unflaggingly work with perseverance; keep on chipping -- work with perseverance; keep one's nose to the grindstone; make steady efforts; stick to sth. with persistence:
Study requires perseverance. 学习要有锲而不舍的精神。
He was hopeless at French, but his teacher persevered with him.