painstaking
adj
done with, requiring or taking great care or trouble 极小心的; 辛勤的; 辛苦的
a painstaking job, investigation 艰苦的工作、 调查
painstaking accuracy 高度的精确性
a painstaking student, worker, etc 勤奋的学生、 工人等.
Of course he is. He's very successful. He's made lots of records. They broadcast a programme of his music last month on the radio. Why don't you come on Saturday? I think you'd enjoy it.