1
look dubiously at sb/sth
dubiously 常与 look 连用，位于动词之后、介词之前，表达“用怀疑的眼光看”。注意介词 at 不可省略。
The detective looked dubiously at the suspect's alibi.
侦探怀疑地看着嫌疑人的不在场证明。
怀疑地；可疑地
先理解核心含义，再看它在真实句子里的用法。
怀疑地；可疑地
in a doubtful or questionable manner
The detective looked dubiously at the suspect's alibi.
侦探怀疑地看着嫌疑人的不在场证明。
可疑地,犹豫地。
In a dubious manner.
怀疑地；焦虑不安地
Accompanied by doubt, or anxious uncertainty.
He raised an eyebrow and looked dubiously at the cold soup.
他扬起眉毛，怀疑地看着那碗冷汤。
When I said the plan would work, she shook her head dubiously.
当我说这个计划会成功时，她怀疑地摇了摇头。
The cashier stared dubiously at the torn banknote.
收银员怀疑地盯着那张破损的钞票。
dubiously 常与 look 连用，位于动词之后、介词之前，表达“用怀疑的眼光看”。注意介词 at 不可省略。
The detective looked dubiously at the suspect's alibi.
侦探怀疑地看着嫌疑人的不在场证明。
regard 后接宾语，dubiously 放在句末，强调动作的怀疑态度。
Investors regarded the new policy dubiously.
投资者们怀疑地看待这项新政策。
dubiously 放在动词前可强调怀疑的态度。
He dubiously accepted the offer.
他怀疑地接受了这个提议。
Not this
She was dubiously about his excuse.
Use this
She was dubious about his excuse.
dubiously 是副词，不能作 be 的表语；表示“对……持怀疑态度”时应用形容词 dubious，搭配 be dubious about。
Not this
He looked dubious at me.
Use this
He looked dubiously at me.
此句中的 looked 是实义动词“看”，需用副词 dubiously 修饰；若用形容词 dubious，句子会变成系表结构，意思变成“他看起来可疑”，不符合原意。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
怀疑地看着
She looked dubiously at the expensive gadget before buying it.
她怀疑地看着那个昂贵的设备，然后才买下它。
合法性可疑的
The lawyer warned that the contract was dubiously legal.
律师警告说这份合同合法性可疑。
来路可疑的
The official was accused of using dubiously acquired funds.
该官员被指控使用来路可疑的资金。
持怀疑态度看待
Many scientists regard the new theory dubiously.
许多科学家对这一新理论持怀疑态度。
可疑地宣称
The advertisement dubiously claims that the drink boosts immunity.
这则广告可疑地宣称该饮料能增强免疫力。
Use dubiously naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 dub 联想成 doubt（怀疑）的开头，-ously 表示副词，合起来就是“怀疑地”。
语域：mixed 常见场景：正式写作、新闻报道、文学叙事 dubiously 多用于书面或较正式语境，例如正式写作、新闻报道和文学叙事，表示“怀疑地”或“可疑地”；在日常口语中较少使用，可根据文体改用 doubtfully 等更中性的词。此处标注为混合（mixed），因为具体用法会随语境和搭配变化。
这些词都含有非重读后缀 /əsli/，但重音都在前面的音节上，与 dubiously（/ˈdjuːbiəsli/，重音在第一个音节）并不真正押韵。注意拼写相似的形容词 dubious 读作 /ˈdjuːbiəs/，结尾不同。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.