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
可疑地,犹豫地。；怀疑地；焦虑不安地
in a doubtful or questionable manner
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。
用法提示：副词 dubiously 修饰动词短语 looked at，表示怀疑的态度。
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。
用法提示：副词 dubiously 修饰动词短语 shook her head，表示不确信。
The cashier stared dubiously at the torn banknote.
收银员怀疑地盯着那张破损的钞票。
用法提示：副词 dubiously 修饰动词 stared at，表示可疑、不信任。
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。
与 dubiously 最接近，语气中性，侧重内心不确定；两者常可互换。
强调觉得某事有诈或对人不信任，比 dubiously 更具警惕色彩；在 look at someone 等搭配中很常用。
多指对说法、主张或证据持理性怀疑，较少用于对人的一般不信任。
侧重对人的不信任，语气较强，不如 dubiously 通用，正式程度较高。
grammar · medium
易错句子She was dubiously about his excuse.
正确表达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。
grammar · medium
易错句子He looked dubious at me.
正确表达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。
对应“怀疑地”（doubtfully）义项，指以确信、不怀疑的态度；不用于“可疑地”义项。
对应“怀疑地”义项，强调对人或事信赖；与“可疑地”义项不通用。
对应“可疑地”（questionably）义项时可用作反义；与“怀疑地”义项不通用。
dubiously 强调事物本身可疑或令人怀疑，doubtfully 强调人心中不确定、拿不准；doubtfully 常描述说话或看的神情，dubiously 更常修饰行为或说法本身的可疑。
dubiously 指“可疑/不确定”，suspiciously 指“认为有诈、起疑心”，常带不信任甚至警惕的意味；suspiciously 也常修饰动作表示“令人起疑地”，而 dubiously 修饰人“满腹狐疑地”。
dubiously 可指“怀疑地”（人的态度），questionably 主要指“以有问题的方式/存疑地”，多修饰行为或品质，很少表示人心里犯嘀咕。
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。
-iously
-iously
-iously
-iously
-iously
-iously
dub- (root: doubt 怀疑) + -ious (adjective suffix 形容词后缀) + -ly (adverb suffix 副词后缀); no prefix; related words: dubious, doubt, indubitable (same root), serious/seriously, obvious/obviously (same suffix)
常用于引述可疑或未经证实的信息。
与可疑相关，因为可疑的事往往可信度低。
面对可疑说法时通常会去核实。
可疑的主张往往缺少充分证据。
可疑之处常受到仔细审查。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.