nǔ lì
great effort
to strive
to try hard
gòng tóng nǔ lì
to work together
to collaborate
kè kǔ nǔ lì
assiduous
taking great pains
shào zhuàng bù nǔ lì , lǎo dà tú shāng bēi
if you are lazy in your prime, you'll be sorry in your old age
nǔ lì yǐ fù
to use one's best efforts to do sth (idiom)
jiā dà nǔ lì
to try harder
to redouble one's efforts
Bèi nǔ lì
Bernoulli (Swiss mathematical family, including Johann (1667-1748) and Daniel (1700-1782))