Painstaking adj.苦干的，辛勤的；用心的， painstaking care 。 无微不至的关心 make painstaking investigations ·进行过细的调查 Painstaking adj. 苦干的, 辛勤的; 用心的, • painstaking care • 无微不至的关心 • make painstaking investigations • 进行过细的调查