1
inexplicably + verb
作方式状语修饰动词时，通常直接放在实义动词前。
The lights inexplicably went out.
灯莫名其妙地灭了。
无法解释地；莫名其妙地
先理解核心含义，再看它在真实句子里的用法。
无法解释地；莫名其妙地
in a way that cannot be explained
The lights inexplicably went out.
灯莫名其妙地灭了。
莫名其妙地
In an inexplicable manner; for an unknown reason.
The car inexplicably stopped in the middle of the road.
那辆车莫名其妙地在路中间停了下来。
She felt inexplicably sad after the party ended.
聚会结束后，她莫名其妙地感到难过。
He inexplicably left his keys in the refrigerator.
他莫名其妙地把钥匙留在了冰箱里。
作方式状语修饰动词时，通常直接放在实义动词前。
The lights inexplicably went out.
灯莫名其妙地灭了。
用于不及物动词后作状语；若动词带宾语，通常放在宾语之后。
She left inexplicably.
她莫名其妙地离开了。
置于句首时修饰整个句子，表达说话者对所述事情感到难以理解，通常用逗号隔开。
Inexplicably, the plan succeeded.
莫名其妙地，计划竟然成功了。
Not this
He explained inexplicably the problem.
Use this
He inexplicably explained the problem.
explain 是及物动词，the problem 是它的宾语，副词不能插在动词和宾语之间。中文的“莫名其妙地”位于动词前，英语也应把 inexplicably 放在动词前或句末。
Not this
The reason was inexplicably.
Use this
The reason was inexplicable.
was 是系动词，后面需要形容词作表语，不能用副词 inexplicably。inexplicably 只能修饰动词、形容词或句子，不能修饰主语 reason；应改为形容词 inexplicable。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
莫名其妙地不见了
The keys were inexplicably missing from the drawer.
钥匙莫名其妙地从抽屉里不见了。
不由自主地被吸引
She was inexplicably drawn to the old house.
她不由自主地被那座老房子吸引。
异乎寻常地沉默
He remained inexplicably silent throughout the meeting.
整个会议期间他都异乎寻常地沉默。
莫名其妙地受欢迎
The strange video became inexplicably popular online.
那个奇怪的视频莫名其妙地在网上火了起来。
神秘消失
The plane inexplicably vanished from radar.
那架飞机神秘地从雷达上消失了。
莫名延迟
The flight was inexplicably delayed for hours.
航班莫名其妙地延误了好几个小时。
Use inexplicably naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
由in-(不)+explicable(可解释的)+ly组成：想象“不可解释地”发生的事，如钥匙莫名消失，让你无法解释。
语域：formal 常见场景：formal writing、news reporting、literary narration 该词多用于书面或正式语境，比较常见于新闻报道和文学作品；日常口语中通常较少使用，人们更常说 for some reason 或 can't explain why。
The -ably adverbs above all end in the same unstressed /əbli/ as inexplicably, but their stressed vowels differ, so they are ending matches, not true rhymes. The adjective inexplicable is a useful lookalike: it ends in -able and often has a different stress pattern (e.g., /ˌɪnɪkˈsplɪkəbəl/), so its final sound is /əbəl/, not /əbli/.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.