have qualms about sth/doing sth
He had no qualms about lying to his parents.
他对欺骗父母毫无愧疚。
晕眩，恶心；不安、怀疑、恐惧等的感觉；不安；突然的恶心感；反胃；轻度恶心
a feeling of unease or doubt about the appropriateness of an action, especially a moral one
不安、怀疑、恐惧等的感觉
A feeling of apprehension, doubt, fear etc.
不安
uneasiness about the fitness of an action
突然的恶心感；反胃
A sudden sickly feeling; queasiness.
轻度恶心
a mild state of nausea
良心的刺痛；道德上的顾虑,内疚感
A prick of the conscience; a moral scruple, a pang of guilt.
She had no qualms about telling him the truth.
她对于告诉他真相毫无不安。
用法提示：qualms 作复数形式，后接 about，表示对某事的疑虑或不安。
He felt a sudden qualm of nausea as the ship began to rock.
船开始摇晃时，他突然感到一阵恶心。
用法提示：qualm 为单数，后接 of，表示一阵眩晕或恶心。
Despite his initial qualms, he decided to invest in the project.
尽管最初有疑虑，他还是决定投资这个项目。
用法提示：qualms 作复数，表示良心上的不安或疑虑。
He had no qualms about lying to his parents.
他对欺骗父母毫无愧疚。
常用介词 about 或 over。
She expressed qualms over the decision.
她对这一决定表达了疑虑。
副词性用法，强调毫无心理负担。
They accepted the offer without qualms.
他们毫无顾虑地接受了提议。
qualm 侧重良心上的不安；misgiving 更侧重对后果的担忧，不一定涉及道德，且常用复数。
scruple 更正式，常指基于道德原则的顾虑；qualm 可以是瞬间的不安，scruple 更像一种稳定的原则性犹豫。
compunction 很正式，多用于否定句（如 without compunction），表示毫无悔意；qualm 则更常用、更口语化。
doubt 范围广，可指任何不确定性，不一定涉道德；qualm 特指做事前良心上的不安。
uneasiness 是泛指的不安，不如 qualm 具体，也不一定针对某一行为或道德问题。
grammar · medium
易错句子I qualm about his decision.
正确表达I have qualms about his decision.
qualm 是名词，不是动词，应使用 have qualms about 结构表示对某事有疑虑。
grammar · medium
易错句子He has little qualm about lying.
正确表达He has few qualms about lying.
qualm 是可数名词，常以复数形式出现，表示少量应用 few 而非 little。
对应『疑虑、不安』义；与怀疑、担忧相对，不用于『恶心』义。
对应『疑虑、不安』义；指内心坦然无忧，不用于『恶心』义。
对应『良心上的顾虑、愧疚』义；指毫无道德负罪感，不用于『恶心』义。
calm（平静）与qualm（疑虑）拼写发音相近，但意义相反。calm指没有紧张或担忧的状态，qualm指良心上的不安或疑虑。
对……毫无顾虑
She has no qualms about telling the boss what she really thinks.
她对于把真实想法告诉老板毫无顾虑。
毫无愧疚地；毫无不安地
He lied to his parents without qualms.
他毫无愧疚地对父母撒了谎。
道德上的顾虑；良心上的不安
The journalist had moral qualms about revealing the anonymous source.
那位记者对曝光匿名消息来源有道德上的顾虑。
与qualm的‘良心不安’含义密切相关，qualm常指良心的刺痛。
qualm可指一阵内疚或罪恶感，与guilt同属道德情感范畴。
道德困境常引发qualm，两者都涉及是非抉择的内心挣扎。
qualm也表示忧虑和不安，与anxiety同属情绪上的紧张状态。
qualm的另一个含义是轻微恶心，与nausea同指身体不适感。
对……毫无顾忌
She had no qualms about telling her boss what she thought.
她对告诉老板自己的想法毫无顾忌。
毫不犹豫地；毫无愧疚地
He accepted the money without a qualm.
他毫不犹豫地收下了钱。
良心的不安
He felt qualms of conscience after lying to his friend.
他对朋友撒了谎后感到良心不安。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.