adv.费力地；苦心地
He's always painstakingly at his books. 他总是在埋头苦读。
His book is engaging and painstakingly reported. 他的作品生动有趣、报道详实。
He advocates painstakingly that buys down this base. 他极力主张买下这块地基。
The cause they contrived so painstakingly also ended in failure. 他们惨淡经营的事业也以失败而告终。
Success always goes to those who do their job painstakingly. 成功永远属于用心做事的人。
