刻苦地,煞费苦心地;精心;勤勤恳恳;刻意;

The garment store they so painstakingly built up also ended in failure.
他们苦心经营的服装商店也以失败而告终.
来源:《现代汉英综合大词典》An air of unstudied spontaneous utterance is apt to be painstakingly achieved.
一时冲动就脱口而出的说话风格自然很难让人接受.
来源:互联网摘选The old painting was damaged in the flood and had to be painstakingly restored.
那幅古画在洪水中遭到毁坏,必须精心修复.
来源:《简明英汉词典》Every aspect of the original has been closely studied and painstakingly reconstructed.
原作的每一细节都经过了仔细研究,费尽苦心才得以重现.
来源:《简明英汉词典》
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