to stay motivated and passionate about something
поддерживать огонь (podderzhivat' ogon')
"Even after failure, he managed to keep the fire burning."
"Даже после неудачи он смог поддерживать огонь." (Dazhe posle neudachi on smog podderzhivat' ogon'.)
to insert or add something gradually
to stay positive and not lose hope in difficult situations
to deliberately ignore something wrong or unpleasant
to become comfortable in a new place or situation
to be an example that others should imitate
to buy something that is defective or worthless
