難的：difficult=troublesome=burdensome=thorny
不可或缺的：necessary=indispensable=inevitable=irreplaceable=unavoidable
重要的：important=crucial, critical, essential, vital=be importance=be of cruciality=be of criticality= be of essentiality=be of vitality
巨大的：large=enormous, tremendous, considerable, appreciable
正確的（correct）=仔細的(careful)=arduous=assiduous
有道理的：reasonable=rational and plausible
吸引人的：attractive=inviting and appealing
足夠的：adequate and sufficient
很多，許多：A a wealth of=a flood of=vast arrays of
B a tremendous(enormous/considerable/appreciable) amount(number/sum) of
更，越來越：more and more
A 更+ 具體名詞（比如錢，人數(shù)等） a growing/increasing/climbing number/amount/sum of
抽象名詞（比如影響，重要性）growing/increasing/climbing=B 更+形容詞 growingly/increasingly/climbingly=C 更+動詞 to a larger extent
不可或缺的：necessary=indispensable=inevitable=irreplaceable=unavoidable
重要的：important=crucial, critical, essential, vital=be importance=be of cruciality=be of criticality= be of essentiality=be of vitality
巨大的：large=enormous, tremendous, considerable, appreciable
正確的（correct）=仔細的(careful)=arduous=assiduous
有道理的：reasonable=rational and plausible
吸引人的：attractive=inviting and appealing
足夠的：adequate and sufficient
很多，許多：A a wealth of=a flood of=vast arrays of
B a tremendous(enormous/considerable/appreciable) amount(number/sum) of
更，越來越：more and more
A 更+ 具體名詞（比如錢，人數(shù)等） a growing/increasing/climbing number/amount/sum of
抽象名詞（比如影響，重要性）growing/increasing/climbing=B 更+形容詞 growingly/increasingly/climbingly=C 更+動詞 to a larger extent