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painstakingly + verb
副词通常紧跟所修饰的动词，语气正式，强调动作的细致与耐心。
She painstakingly checked every figure in the report.
她一丝不苟地核对了报告中的每一个数字。
煞费苦心地；一丝不苟地
先理解核心含义，再看它在真实句子里的用法。
煞费苦心地；一丝不苟地
in a fastidious and painstaking manner
She painstakingly checked every figure in the report.
她一丝不苟地核对了报告中的每一个数字。
非常缓慢而仔细地；煞费苦心地
In a painstaking manner; very slowly and carefully.
以一丝不苟和煞费苦心的方式
in a fastidious and painstaking manner
She painstakingly copied every word of the old letter into her notebook.
她煞费苦心地把那封旧信的每一个字都抄写到笔记本上。
AI contextual example
The team painstakingly checked each detail before the final presentation.
团队在最终演示前煞费苦心地核对了每一个细节。
AI contextual example
He painstakingly built the model ship over several months.
他花了几个月时间煞费苦心地搭建这艘模型船。
AI contextual example
it is almost a waste of time painstakingly to learn the routines of selling
费尽心思学习销售套路简直是浪费时间。
WordNet
副词通常紧跟所修饰的动词，语气正式，强调动作的细致与耐心。
She painstakingly checked every figure in the report.
她一丝不苟地核对了报告中的每一个数字。
被动语态中，painstakingly 位于过去分词之前，突出修复、整理等过程的艰难与细致。
The ancient manuscript was painstakingly restored by conservators.
这份古代手稿被修复人员煞费苦心地修复了。
过去分词作前置定语时，painstakingly 强调研究工作或准备工作的细致程度。
This is a painstakingly researched biography of the poet.
这是一部煞费苦心研究而成的诗人传记。
Not this
He is painstakingly in his work.
Use this
He is painstaking in his work.
painstakingly 是副词，不能放在系动词 is 后作表语；描述主语的状态或品质应用形容词 painstaking。
Not this
After the injury, he walked painstakingly.
Use this
After the injury, he walked painfully.
painstakingly 意为“煞费苦心地、一丝不苟地”，与“疼痛地”无关；表达身体疼痛应用 painfully。两个词虽形近但含义不同。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
极其详尽细致的
The report is painstakingly detailed, covering every stage of the investigation.
这份报告极其详尽细致，涵盖了调查的每一个阶段。
煞费苦心研究的
Her biography is painstakingly researched and based on many newly found letters.
她的传记是煞费苦心研究出来的，基于许多新发现的信件。
精心制作的
Each piece is painstakingly crafted by local artisans.
每件作品都由当地工匠精心制作。
极其精确的
The map was painstakingly accurate, down to the smallest alley.
这张地图极其精确，连最小的巷子都标了出来。
极其缓慢而细致的
The restoration work was painstakingly slow because every brushstroke had to match the original.
修复工作极其缓慢而细致，因为每一笔都必须与原作吻合。
煞费苦心修复的
Volunteers painstakingly restored the old theater to its original splendor.
志愿者们煞费苦心修复了这座老剧院，使它恢复了昔日的辉煌。
发长 /eɪ/ 音 (如 rain, wait)
Use painstakingly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
pain(疼痛)+staking(像钉桩) → 忍着疼一桩一桩地钉，比喻煞费苦心、一丝不苟。
语域：formal 常见场景：academic writing、literary prose、news reporting painstakingly 属于比较书面的表达，通常出现在正式写作或严肃叙述中，强调做事认真、费心；口语中更常用 carefully 或 with a lot of effort。
这些词都以 -ingly 结尾，词尾均读 /ɪŋli/，与 painstakingly 的 /ɪŋli/ 结尾一致。注意 -ng- 读 /ŋ/，不要读成 /n/ 或 /nli/。Breathtakingly 与 painstakingly 的末尾 /teɪkɪŋli/ 和拼写 -takingly 完全相同，但两个词的重音都在各自的第一个音节：painstakingly 以 /peɪn/ 开头，breathtakingly 以 /brɛθ/ 开头，所以整体并不完全押韵。其他词（interestingly, surprisingly, increasingly, seemingly, amazingly）虽然拼写上都是 -ingly，但重读音节及元音不同，也不能与 painstakingly 完全押韵。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.