ümidi itirməmək
to take smth. (right) on the chin / to keep up heart / to keep a good heart / to keep up one’s courage / to carry (keep) a stiff upper lip / to present (show) a bold front / to take things on the chin / to keep one’s chin up / to make the best of it (a bad bargain, jod business) / not let it get oneself down / not feel dejected (disheartened)
не падать духом (стойко переносить жизненные невзгоды, не унывать)