acting
activity
inactivity
actualize
counteract
enact
exact
interact
react
transact
2.clam,claim=shout呼喊
acclaim
acclamation
declaim
declamation
exclaim
exclamation
proclaim
reclaim
clamor
clamorous
3.clos,clud,clus=close關閉
closure
disclose
enclose
conclude
exclude
include
occlude
preclude
seclude
recluse
4.dic,dict=say,assert說，斷言
dictate
dictionary
abdicate
addict
contradict
edict
indictate
indict
interdict
predict
5.duc,duct=lead,bring引導，帶來
deduce
educe
induce
educate
introduce
produce
reduce
seduce
abduct
conduct
induct