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obsessively + verb
强调动作带有强迫性，常修饰行为动词。
She checks her phone obsessively.
她着魔似地查看手机。
强迫性地；着迷地；无法克制地
先理解核心含义，再看它在真实句子里的用法。
强迫性地；着迷地；无法克制地
in a compulsive manner
She checks her phone obsessively.
她着魔似地查看手机。
强迫性地；着迷地
In an obsessive manner.
到强迫性的程度；极度地
To an obsessive degree.
She checked her phone obsessively all day.
她整天过分频繁地查看手机。
He cleaned his desk obsessively before every exam.
每次考试前他都要着魔似的清理书桌。
They worry obsessively about small details.
他们过分担心小细节。
强调动作带有强迫性，常修饰行为动词。
She checks her phone obsessively.
她着魔似地查看手机。
用于修饰形容词，表示程度极端，常带负面评价。
He is obsessively focused on his work.
他着魔似地专注于自己的工作。
置于句首，以逗号隔开，修饰整个句子，强调行为状态。
Obsessively, he kept rearranging the books.
他着魔似地反复重新摆放那些书。
Not this
He is obsessive checking his phone.
Use this
He is obsessively checking his phone.
这里修饰动作 checking，需要用副词 obsessively；形容词 obsessive 不能修饰动词。
Not this
He checks obsessively his phone.
Use this
He checks his phone obsessively.
方式副词 obsessively 不能放在及物动词 checks 和宾语 his phone 之间，应放在宾语之后，或写作 He obsessively checks his phone。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
着迷般专注的
He was obsessively focused on his research.
他着迷般专注于自己的研究。
反复检查；强迫性查看
She kept obsessively checking her phone for messages.
她不停地强迫性查看手机有没有消息。
洁癖的；过分爱干净的
Her apartment is obsessively clean.
她的公寓干净得过分。
过度担忧的；焦虑不安的
He was obsessively worried about making a mistake.
他过度担忧自己会犯错。
过分注重细节的
She is obsessively detail-oriented when editing documents.
她编辑文档时过分注重细节。
Use obsessively naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把“obsessively”想成“obsess（着迷）+ively”，像被心魔缠住，不自觉地反复做，就是“着魔似地”。
语域：neutral 常见场景：日常对话、书面写作 该词为中性常用副词，口语和书面语中都较自然，多用于形容行为或思考带有强迫性、难以自控。
obsessively 读作 /əbˈsɛsɪvli/。这些词与它押韵：重读元音 /ɛ/ 及之后的 /sɪvli/ 相同，且拼写都带 -ssively。注意：inclusively /ɪnˈkluːsɪvli/、elusively /ɪˈluːsɪvli/、decisively /dɪˈsaɪsɪvli/ 虽也以 -sively 结尾，但重读元音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.