難

difficult (to...) / problem / difficulty / difficult / not good

disaster / distress / to scold

clay / old variant of 僅|仅[jin3] / violet (plant)

short-tailed bird

disaster; catastrophe

to feel embarrassed or awkward / to make things difficult (for someone) / to find things difficult (to do or manage)

to rise in revolt / to raise difficult questions

to feel embarrassed / to feel awkward

hard to understand / difficult to deal with / knotty / complicated

to be daunted by challenges

knotty problem / intractable difficulty

trouble shooting / solution to difficulties

dubious or hard-to-treat cases (medicine) / hard cases

(a line from a poem by the Tang poet Liu Yuxi 劉禹錫|刘禹锡[Liu2 Yu3 xi1]) one gains very little insight into one's enemy from a hundred victories, but he who breaks his arm three times will be a good doctor / (fig.) one learns more from one's failures than from one's successes

to put up innumerable obstacles / to create all kinds of difficulties (idiom)

to find sth increasingly difficult

hard to distinguish real from imitation

(idiom) to put up innumerable obstacles; to create all kinds of difficulties

catastrophic

disaster movie

(idiom) you can lead a horse to water but you cannot make it drink

You can lead a horse to water, but you can't make him drink. (idiom)

it is easy to go from frugality to extravagance; the reverse is not so easy (idiom)

to make sth difficult / to create obstacles