难

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

disaster / distress / to scold

(once) again / also / both... and... / and yet / (used for emphasis) anyway

short-tailed bird

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

hard to explain in a few words (idiom); complicated and not easy to express succinctly

dilemma / quandary / to face a difficult choice

to raise a tough question

countless difficulties / extremely difficult / against all odds

to be on the horns of a dilemma (idiom)

retort with challenging questions / debate

to make do in difficult circumstances by being resourceful / (of circumstances) difficult / challenging / (of a budget) tight / (of a man-made thing) makeshift / rough and ready

demanding and strict (idiom) / exacting

it's difficult to please everyone (idiom)

(idiom) one cannot afford to incur public wrath / it is dangerous to incur the anger of the masses

in peril / facing disaster

the first step is the hardest (idiom)

every beginning is difficult (idiom) / getting started is always the hardest part

to meet with great difficulties but pull through

lit. An interval of time is worth an ounce of gold, money cannot buy you time. (idiom) / fig. Time is precious and must be treasured.

lit. a single post cannot prop up a falling house (idiom) / fig. one is helpless alone

lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept

see 天下無難事，只怕有心人|天下无难事，只怕有心人[tian1 xia4 wu2 nan2 shi4 , zhi3 pa4 you3 xin1 ren2]

hard to fathom a person's mind (idiom)