四字母词根: sist=stand站立

resist

resistance

resistant

resistible

四字母词根: soph智慧

philosopher

philosophy

philosophical

pansophic

四字母词根: Sper/spair希望

desperate

desperately

desperation

desperado

despair 心

四字母词根: tact，tag触

tactile

contact

intact

contagion

contagious