loversea2005
持之以恒persevere 锲而不舍work with perseverance 孜孜不倦work diligently and tirelessly 都差不多,看着用把.
老鼠笨笨
1 锲而不舍work with perseverance2 锲而不舍的名胜观光者an inveterate seer of sights. 3 学习要有锲而不舍的精神。Study requires perseverance. 4 艺术创造是人类锲而不舍的追求。To make art is an indomitable urge of human beings.