to decide to do something without being asked or required
решить сделать что-то без просьбы или обязательства (reshit' sdelat' chto-to bez pros'by ili obyazatel'stva)
"She decided to take it upon herself to organize the event."
"Она решила взять на себя организацию мероприятия." (Ona reshilas' vzyat' na sebya organizatsiyu meropriyatiya)
to refuse to give up or change your position
to approach the last possible moment before a deadline
to make a small mistake
to have an advantage or be well prepared
a sign that something bad will happen soon
to start sweating due to fear or anxiety
