第一组:熟练

deft

adept

skillful

experienced

stunt

craft

facility

familiarize

accomplished

第二组:素质

APtitude

vigor

caliber

quality

temperament

stamina

talent

confidence

disposition

mass

ability

versatile

power

第三组:贪婪

avid

ravenous

rapacious

greedy

covetous

avarice

avaricious

acquisitive

第四组:严酷

exacting

ascetic

grim

relentless

ruthless

rigid

stern

stringent

scrupulous

drastic

harsh

rigor

rigorous

serious

severe

austerity

ordeal

第五组:勇敢

bold

daring

undaunted

dauntless

valiant

gallant

intrepid

valor

第六组:自私

flighty

skimpy

stingy

miserly

snobbish

selfish