Eng

Difficult...

困

Difficult, Hard, Perplex, Poor, Puzzle, Weary

繁

Abundant, Complex, Complicated, Difficult, Intricate, Many, Numerous, Prolific

苦

Bitter, Challenging, Difficult, Hard, Miserable, Suffering

難

Complex, Difficult, Disastrous, Hard, Not easy, Prefix Used As, Problem, Problematic, Rebuke, Reprimand, Suffer

困難

Challenges, Difficult, Difficulty, Hardships, Problems

困難重重

Difficult, Difficulties, So challenging

(Challenges, Difficulty, Hardships, Problems, Heavily)

費勁

Difficult, Strenuous

費事

Difficult, Troublesome

很難

Difficult

很難受

Difficult, Difficult to

(Be unbearable, Feel sad, Intolerable, Miserable, Suffer from)

辛苦

Difficult, Hard

艱巨

Difficult

艱鉅

Arduous, Challenging, Difficult, Hard

艱苦

Arduous, Challenging, Difficult, Hard

艱難

Difficult, Difficulty, Hard ship

難以

Difficult, Hard to

難過

Difficult, Feel bad, Hard, Hard to, Sad

不方便

Difficult, Inconvenient

(Convenient)

不可

Difficult, Forbidden, Hard, No, None, Not allowed

棘手

Challenging, Difficult, Tricky

棘手的

Challenging, Difficult, Tricky