one can't wrap one's head around(I can't wrap my head around the fact that I got fired. – У меня в голове не укладывается, что меня могли уволить.Рина Грант)
one can't wrap one's head around(I can't wrap my head around the fact that I got fired. – У меня в голове не укладывается, что меня могли уволить.Рина Грант)
one can't get one's head around(не во всех контекстах; вариант требует изменения конструкции: It's hard to get your head round figures this big. • I just can't get my head around it!m_rakova)
not compute(something does not compute ► used to say that something does not having any meaning, or does not seem possible or correct: "It can't be done, it doesn't compute. "The situation was bothering me because something about it just didn't compute. CBED Alexander Demidov)
wrap one's head around something(e.g. "I can't wrap my head around the fact that I got fired" – "У меня в голове не укладывается, что меня могли уволить!" Рина Грант)
