butter wouldn't melt in one's mouth
look as if butter wouldn't melt in one's mouth
You act very polite and friendly but do not really care, you are very nice to people but are not sincere.
Волк в овечьей шкуре.
The new secretary was rude to the other workers, but when she talked to the boss, butter wouldn't melt in her mouth.
She looks like butter wouldn’t melt in her mouth, but she has broken so many hearts.
Она выглядит такой невинной, но разбила так много сердец.
butterflies in one's stomach
A queer feeling in the stomach caused by nervous fear or uncertainty; a feeling of fear or anxiety in the stomach.
Ощущение дискомфорта в организме из-за нервного напряжения, неопределенности, возбуждения или страха.
When Bob walked into the factory office to ask for a job, he had butterflies in his stomach.
My sister always has butterflies in her stomach before a test.
У моей сестры всегда мандраж перед тестом.
I have butterflies in my stomach every time I see her.
Я волнуюсь каждый раз, когда я вижу ее.
by dint of
By the exertion of; by the use of; through.
By dint of sheer toughness and real courage, he lived through the jungle difficulties and dangers.
His success in college was largely by dint of hard study.
by inches
By small or slow degrees; little by little; gradually.
The river was rising by inches.
They got a heavy wooden beam under the barn for a lever, and managed to move it by inches.
He was dying by inches.
by my book
in my book
In my opinion; as far as I am concerned; in my judgment.
By my book, Mr. Murgatroyd is not a very good department head.
by the skin of one's teeth
By a narrow margin; with no room to spare; barely.
The drowning man struggled, and I got him to land by the skin of my teeth.
She passed English by the skin of her teeth.
by virtue of
in virtue of
On the strength of; because of; by reason of.
By virtue of his high rank and position, the President takes social leadership over almost everyone else.
Plastic bags are useful for holding many kinds of food, by virtue of their clearness, toughness, and low cost.
call in question
call into question
call in doubt
To say (something) may be a mistake; express doubt about; question.
Bill called in question Ed's remark that basketball is safer than football.