to give evidence in court against someone
давать показания в суде против кого-то (davat' pokazanija v sude protiv kogo-to)
"The witness agreed to testify against the accused."
"Свидетель согласился свидетельствовать против обвиняемого." (Svidetel' soglasilsja svidetel'stvovat' protiv obvinjaemogo.)
to do something faster because you started late
to discuss something carefully to understand or solve it
to take advantage of something to gain success
to be unable to access a system due to password or error
to become friends again naturally after a conflict
to strengthen belief in your own abilities