adjective
needing a lot of care, effort and attention to detail 需细心的；辛苦的；需专注的 SYN thorough
painstaking research
细心的研究
The event had been planned with painstaking attention to detail.
这次活动的细节是经过精心计划的。
adverb
The old house was painstakingly restored to its original splendor.
经过精心的修复，这栋旧房子恢复了往日的辉煌。
She painstakingly researched all of her articles.
她煞费苦心地对她所有的文章进行了研究。