I swear or promise sincerely.
я клянусь или обещаю искренне. (ya klyanus' ili obeshchayu iskrenne.)
"I will help you, cross my heart."
"я помогу тебе, кросс май харт" (ya pomogu tebe, kros mai khart)
a person who acts as if they know everything
A silly or foolish person.
To fit perfectly.
to relax or slow down after activity
Very drunk or intoxicated.
to solve a problem through programming skills
