英和和英

He says he does not know.

to pretend not to know

the condition of being ignorant of something

the state of being totally unfamiliar with something

the manner of pretending to know nothing about the matter

the condition of not yet knowing

of a person, the state of not knowing something

not knowing or perceiving

the quality of having an unconcerned air

the condition of still being unknown

a person who feigns ignorance

unfamiliar

an act of disagreeing

the act of pretending not to know something

unknown to most people

not made known

the state of lacking in knowledge

lesser‐known

I know nothing

He can not know them

to continue to pretend ignorance

I don't know.

He can not be ignorant of them

an unenlightened state

I don't know.

to feign on purpose

a period of time during which something is secret

I don't know.

Don't you know?

How should I know?