mastermind with painstaking effort

• 苦心经营

mastermind with painstaking effort的用法和样例：

例句

1. Dix Hills Chinese school is supported and run today by parents, teachers, and school administration who volunteer their time and effort.
   这个学校是由以培育您的子女为己任的行政领导班子苦心经营着，由无私的老师们辛勤耕耘着，由广大热心的家长们支持着。