(slang) to endure difficulties in life for living and surviving; to persevere through a hard working life

(verb) to stay up late; to stay up all night; to burn the midnight oil

high endurance

(verb) to stay up late working; ) to work overtime; to work all day and night

bear the pain and hardship (spoken)

to survive on one's saving

noun; it means sense of honour, the spirit of brotherhood, they do me a huge favor

to endure hunger

working slavishly

lit. to survive on bread; meaning one has to save on food cost for living and survival

work in tough conditions for day and night

both parties are willing; one likes to hit whilst the other is willing to suffer [written and colloquial]

waste of time and energy [colloquial]

hard to endure