to retreat emotionally and avoid social or emotional contact
эмоционально отступить и избегать социальных или эмоциональных контактов (emotsional'no otsyplit' i izbegat' sotsial'nykh ili emotsional'nykh kontaktov)
"He withdrew into himself after the breakup."
"Он от withdrew в себя после разрыва." (On **ot withdrew** v sebya posle razryva.)
to recover or progress faster than others after a downturn
to allow yourself to express feelings or be vulnerable
to increase saved or stored resources for future use
to make efforts to achieve a particular goal
to struggle and keep working hard to achieve success
to safely disconnect from a system again after using it