26.hard-working=assiduous(someone who is assiduous works hard or does things very thoroughly
　　 27.difficult=arduous(if something is arduous, it is difficult and tiring, and involves a lot of efforts)
　　 28.poor(soil)=barren, infertile(used to describe the soil is so poor that plants cannot be planted on it)
　　 29.fragile=brittle, vulnerable(someone who is vulnerable is easily hurt emotionally or physically)
　　 30.show=demonstrate (to demonstrate a fact means tp make it clear to people.)
　　 31.big=massive(large in size, quantity, or extent), colossal(use this word, you emphasize something’s large), tremendous(INFORMAL)
　　 32.avoid=shun(if someone shuns something, s/he deliberately avoid that something or keep away from it.)
　　 33.fair=impartial(someone who is impartial is able to give a fair opinion or decision on something.)
　　 34.attack=assault(physically attack someone), assail (attack violently
　　 35.dislike=abhor(abhor means you hate something to a extreme extent for moral reasons), loathe(dislike very much)!
　　 36.ruin=devastate (it means damage something very badly, or utterly destroy it.)
　　 39.always=invariably(the same as always, but better than always)
　　 40.forever=perpetual(a perpetual state never changes), immutable(something immutable will never change or be changed)
　　 41.surprise=startle(it means surprise you slightly), astound(surprise you to a large degree),astonish(the same as astound)
　　 42.enthusiasm=zeal (a great enthusiasm), fervency (sincere and enthusiasm)
　　 43.quiet=tranquil(calm and peaceful), serene(calm and quiet)!
　　 44.expensive=exorbitant(it means too expensive that it should be)
　　 45.luxurious=lavish(impressive and very expensive), sumptuous(grand and very expensive
　　 46.boring=tedious(if you describe something tedious, you mean it is boring and frustrating)
　　 47.respect=esteem(if you esteem someone, you respect and admire him/her. FORMAL)
　　 48.worry=fret(if you fret about something, you worry about it)
　　 49.cold=chilly(unpleasantly cold), icy(extremely cold)